Itchy Skin at Night: What Causes It, and When Is It Just Dry Skin or a Sign of Disease?
Nighttime itching is itching that gets worse from early evening to the middle of the night. Some people itch so much that they struggle to fall asleep or wake with a start. The causes range from something ordinary like dry skin to signs of an internal disease that needs further tests. This article will help you work out which group your itch belongs to, and when you should see a dermatologist.
Nighttime itching is very common in the clinic, and most patients worry about the same thing: "Is it just dry skin, or something more serious?" There is no single answer, because "itching" is a symptom, not a disease. Finding the real cause means looking at the details, such as whether there is a rash, where it itches, whether others in the household itch too, and whether there are other symptoms.
Why does itching get worse specifically "at night"?
Many people notice that they hardly feel anything during the day, but the itch starts as soon as it is time to sleep. This is not a coincidence or your imagination. There is a clear physiological explanation, related to changes in the body clock (circadian rhythm) at night:
Core body temperature rises slightly and the blood vessels in the skin widen, which warms the skin and makes the itch-sensing nerve endings easier to trigger.
The skin loses more water (TEWL) at night, so it becomes drier and more prone to itching. This is even more noticeable with air conditioning or dry air.
Cortisol, the hormone that helps suppress inflammation, falls to its lowest in the late night, allowing itch-triggering substances such as cytokines and histamine to act at full strength.
Daytime distractions disappear. With no work, screens or noise, the brain notices the itch that was already there much more clearly.
These mechanisms explain why ordinary "dry skin" can itch at night. At the same time, nighttime itching is also a typical feature of certain diseases, such as scabies and liver disease. The key is to tell them apart.
Nighttime itching with a rash versus without a rash: what is the difference?
The first question a dermatologist asks is, "Did any rash or skin lesions appear with the itch?" The answer splits the diagnosis into two main paths:
Itching with a rash or skin lesions, such as bumps, red patches, scales or blisters, usually means the skin itself is the cause, for example scabies, dry skin, hives, allergic rash or insect bites.
Itching without a rash (a crawling itch where scratching reveals nothing), especially if it is chronic and all over the body, calls for more caution because it may be a sign of an internal disease, even when the skin looks normal.
One caution: hard scratching can cause scratch marks, redness or thickened skin on skin that originally had no rash, making it look as if there is a rash even though the true cause is not a skin disease. This is why a detailed history matters more than looking at the skin alone.
5 causes where "the skin is the source" (usually with a rash or lesions)
Scabies: a common and often overlooked cause
Scabies is caused by tiny mites burrowing under the skin, and it is one of the leading causes of nighttime itching that patients often do not think of. Features that should make you think of scabies include:
Very severe itching at night, because the mites move and burrow more at night.
Typical locations, such as between the fingers, the inner wrists, the palms, the armpits, around the navel, the waist and the genitals.
Lesions on the palms and soles can occur, and are especially common in babies and young children, as well as in crusted scabies, which tends to occur in older adults or people with weakened immunity.
People in the same household or close contacts itch at the same time, because scabies spreads through close contact.
Scabies is a cause that can be cured, but it must be treated correctly. The principle is to use an anti-mite cream such as 5% permethrin, applied over the whole body from the neck down, including between the fingers and on the palms, and then repeated as your doctor directs. The doctor determines the dose and duration. Importantly, everyone in the household must be treated at the same time, even those who do not itch yet, and bedding and clothes should be washed in hot water. Otherwise the infestation passes back and forth endlessly.
Dry skin (xerosis)
Dry skin is the most common cause of general nighttime itching, especially in older adults, people who stay in air-conditioned rooms, those who take very hot showers or use drying soaps. The skin looks finely scaly and tight, and itches with a crawling feeling. Symptoms usually improve clearly with regular moisturizer use. If the itch does not go away after thorough skin care, look for other causes as well.
Nighttime hives (urticaria)
Hives are raised red welts that look like nettle stings or mosquito bites, and itch a lot. Their key feature is that each welt usually fades by itself within 24 hours and then appears somewhere new. Some people get them only at night or after a warm shower. If hives continue for more than 6 weeks, they are classed as chronic urticaria, and you should see a doctor for assessment and a treatment plan.
Atopic dermatitis (eczema)
Atopic dermatitis often comes with underlying dry skin and strong itching, especially at night, in skin folds such as the inner elbows, behind the knees and the neck. There is often a personal or family history of allergy. Chronic scratching makes the skin thick and darkened in patches. Control relies on skin care together with anti-inflammatory medicine as your doctor advises.
Insect bites, dust mites and bed bugs
Bed bugs, dust mites and some insects tend to be active at night, so they cause itchy red bumps at bedtime, especially where skin touches bedding. A clue is bumps arranged in a line or in clusters on parts of the body that stick out from the blanket. Cleaning the mattress and surroundings helps a great deal.
Itchy palms at night: what causes it? 6 causes to tell apart
Itchy palms at night are not the same as itching all over the body, because the skin of the palm is unique: the epidermis is much thicker than elsewhere, there are no oil glands but many sweat glands, and the palms are in contact with water, soap and chemicals all day. So the list of diseases to consider when only the palms itch is clearly different from whole-body itching. Here are the 6 most common causes that dermatologists always rule out first.
1. Palm blister eczema (dyshidrotic eczema / pompholyx)
This is the cause most specific to the palms, and patients often mistake it for "a fungal infection" or "a food allergy." The key feature is small, clear blisters deep within the skin that look like tapioca pearls (tapioca-like vesicles), appearing on the palms, the sides of the fingers and sometimes the soles. These blisters do not burst easily because the palm skin is thick, and they are often so intensely itchy that they disturb sleep.
The condition tends to come in cycles, flaring and then calming down. After the blisters subside, the skin peels in sheets and may crack into painful fissures. Common triggers include stress, heavy sweating, hot humid weather, frequent contact with water and detergent, and in some people, a contact allergy to metals such as nickel. The main treatment is to reduce inflammation, restore the skin barrier and avoid triggers, and your doctor determines the dose and duration of the medicines used, because palm skin is thick and responds to medication differently from skin elsewhere.
2. Scabies on the palms and between the fingers
Always think of scabies when your palms and hands itch at night. The classic locations are between the fingers and the inner wrists, but lesions on the palms themselves can also occur, and are especially common in babies and young children, as well as in crusted scabies, where the palms and soles become thickened and scaly and carry a huge number of mites, making it unusually easy to spread.
Signs that help confirm it are severe itching at night, in step with the mites' movement, and others in the household itching at the same time. If scabies is suspected, everyone in the household must be treated at the same time and the cream applied thoroughly, including the palms and between the fingers, with the doctor determining the dose and duration.
3. Irritant and allergic contact dermatitis of the hands (hand eczema / contact dermatitis)
This is the most common cause of itchy, peeling palms among working-age people. It comes in two types: irritant, caused by contact with water, soap, detergent, cleaning products or very frequent handwashing, and allergic, caused by an allergy to certain substances, such as latex in gloves, preservatives in creams, or metals.
Commonly affected occupations include healthcare workers, cooks, hairdressers, cleaners and anyone who wears rubber gloves for long periods. The rash is red, dry, peeling, cracked and itchy, and the itch is often worse at night after the skin has been through a hard day. Effective treatment starts with finding and avoiding the triggers, together with regular use of barrier-repair moisturizers. If contact allergy is suspected, a doctor may consider skin patch testing (patch test).
4. Itchy palms and soles from liver and bile duct disease (cholestatic itch)
This is the most important cause in terms of safety, because it is a sign of an internal disease that needs further tests. When the bile ducts are blocked or the liver is not working properly, certain substances build up in the blood and trigger itching. The distinctive feature is itching that is prominent on the palms and soles, with normal-looking skin and no rash, and clearly worse at night. Patients often say they want to scratch down to the flesh but no amount of scratching relieves it.
Warning sign that needs a doctor: itchy palms and soles together with dark urine, pale stools, or yellowing of the skin and eyes. See a doctor to have your liver and bile duct function checked.
This can occur in chronic liver disease, bile duct obstruction, and intrahepatic cholestasis of pregnancy. In the last of these, itchy palms and soles at night in the third trimester is a sign that must be reported immediately to the doctor caring for the pregnancy, because it affects the baby.
5. Palmar psoriasis
Psoriasis that appears only on the palms and soles (palmoplantar psoriasis) looks different from psoriasis on the body. It forms thick red plaques with dense scale, and the skin cracks into deep, painful fissures. It is usually on both sides and fairly symmetrical. Itching can occur but pain and cracking are usually more prominent. A clue that helps tell it apart is looking for lesions elsewhere, such as the scalp, elbows and knees, and for nail changes such as pitted or lifting nails.
6. Fungal infection of the palm (tinea manuum)
A fungal infection of the palm has features that help tell it apart fairly well: it usually affects one hand only, the palm skin is dry and peels in fine scales especially along the palm creases, and it is often found together with fungal infection of both feet (this pattern is called two feet-one hand syndrome). The itch is usually not as severe as in blistering eczema. A correct diagnosis requires a skin scraping to look for fungus, because if it is misdiagnosed and a steroid cream is applied, the fungus will spread and change its appearance, making it harder to diagnose.
Why do itchy palms get worse at night?
The same mechanisms as whole-body itching also apply to the palms: at night skin temperature rises and the blood vessels widen, the level of cortisol that suppresses inflammation falls, and with no daytime stimuli to draw attention, the brain notices itching more clearly. There are also two palm-specific factors.
The palms have been used and exposed to irritants all day, so skin barrier damage accumulates and shows most clearly at night, especially in people who wash their hands or wear gloves often.
Scabies mites move more at night. If the cause is scabies on the hands and between the fingers, the itch peaks clearly at bedtime.
Differential table: what does each type of itchy palm at night suggest?
What the palms look like | Usually suggests |
Clear, deep-set blisters like tapioca pearls on the palms and sides of the fingers, very itchy | Palm blister eczema (dyshidrotic eczema) |
Severe itching at night + between the fingers/wrists + others in the household itch too | Scabies |
Dry, peeling, cracked palms linked to handwashing, gloves or chemicals | Irritant or allergic contact dermatitis of the hands |
Itchy palms and soles but normal-looking skin + dark urine, pale stools, yellow skin and eyes | Liver or bile duct disease: blood tests needed |
Thick red plaques, dense scale, painful cracks, both sides symmetrical + abnormal nails | Palmar psoriasis |
Fine scaling along the palm creases, one hand only + fungal infection of the feet as well | Fungal infection of the palm (tinea manuum) |
This table is only to help you make initial observations. It cannot replace a diagnosis by a doctor.
Nighttime itching with "no rash" may be a sign of internal disease
If you have chronic itching all over the body, the skin looks normal with no obvious rash, and it has not improved despite good skin care, this is the group in which doctors will also consider internal diseases. This is not meant to alarm you, but because some conditions respond well to treatment once the cause is found.
Liver and bile duct obstruction (cholestatic itch)
When the bile ducts are blocked or the liver is not working properly, certain substances build up in the blood and trigger itching. The key feature is itching all over the body without a rash, often most noticeable on the palms and soles, and worse at night. Accompanying signs to watch for are yellowing of the skin or eyes, dark urine, pale stools and fatigue. If you have these symptoms, your liver function should be checked.
Chronic kidney failure (uremic pruritus)
People whose kidney function has declined, especially those on dialysis, may have chronic itching all over the body without a rash. This is common and often disturbs sleep. Control relies on managing the kidney disease together with specific approaches from your doctor.
Thyroid disease and diabetes
Both an overactive or underactive thyroid and poorly controlled diabetes are linked to itching. In diabetes, itching is often caused by dry skin and nerve damage, producing a crawling itch. Controlling the underlying disease helps the itch improve.
Lymphoma and polycythemia
Chronic itching all over the body without a rash is one of the symptoms that may be seen in some lymphomas, including cutaneous T-cell lymphoma (CTCL). Polycythemia is characterized by severe itching after contact with water or a warm shower. These conditions are uncommon, but they are the reason why chronic itching with no cause found should be assessed seriously, especially when there is weight loss, fever, night sweats or enlarged lymph nodes.
Iron deficiency
Iron deficiency, even before it reaches clear anemia, can cause itching all over the body in some people. It is often seen with fatigue, brittle nails or hair loss. A blood test helps confirm it, and the itch often improves once iron is replaced.
Summary table: what does each type of itch suggest?
What the nighttime itch looks like | Usually suggests |
Severe itch between fingers/wrists/waist + others in the household itch too | Scabies |
Scaly, tight skin, crawling itch, better after applying cream | Dry skin (xerosis) |
Raised red welts that fade on their own within 24 hours and appear elsewhere | Hives (urticaria) |
Itch in skin folds, dry skin, history of allergy | Atopic dermatitis (eczema) |
Red bumps in a line, on areas that stick out from the blanket | Insects / dust mites / bed bugs |
Itching all over the body without a rash + yellow skin and eyes, dark urine | Liver / bile duct disease |
Itching all over the body without a rash + kidney disease / dialysis | Chronic kidney failure |
Severe itching after a warm shower or contact with water | Polycythemia |
Chronic itching + weight loss, fever, enlarged lymph nodes | Needs to be checked for lymphoma |
This table is only an initial guide to help you make observations. It is not a self-diagnosis. A correct diagnosis requires an examination by a doctor.
Warning signs: when should you see a doctor?
See a dermatologist or a physician if your nighttime itching has any of the following features:
Itching all over the body without a rash that has lasted more than 2 to 6 weeks despite good skin care.
General symptoms alongside the itch, such as unintentional weight loss, fever, heavy night sweats or unusual fatigue.
Yellowing of the skin or eyes, or dark urine, which point to a liver or bile duct problem.
Itchy palms and soles together with dark urine, pale stools, or yellowing of the skin and eyes. See a doctor to have your liver and bile duct function checked.
Itchy palms with deep cracks, oozing or a secondary infection, including cases that affect work and everyday use of the hands.
Enlarged lymph nodes that you can feel in the neck, armpits or groin.
Itching so severe that you cannot sleep or that greatly affects daily life.
Suspected scabies, especially when others in the household itch at the same time, because the whole household has to be treated correctly.
Basic self-care (and what not to do)
While waiting to see a doctor, or when the itch is from ordinary dry skin, you can take care of yourself as follows:
Use a moisturizer regularly, especially right after a shower while the skin is still damp, to lock in moisture.
For the palms, reapply hand cream after every handwash, and wear cotton gloves underneath when you need to wear rubber gloves or do wet work, to reduce cumulative irritation.
Avoid very hot showers and drying soaps. Choose gentle products.
Adjust the bedroom so it is not too dry, and clean the bedding regularly.
Keep your nails short and avoid scratching to prevent wounds and the itch-scratch cycle.
What not to do:
Do not buy a strong steroid cream and keep using it on your own for a long time. If the real cause is scabies or an infection, the medicine will hide the symptoms temporarily and let the disease spread or get worse. Misusing strong steroids can also thin the skin and cause side effects.
Do not pierce or squeeze blisters on the palms, because this risks a secondary bacterial infection and slows healing.
Do not leave chronic itching without a rash for a long time without testing, because you may miss the sign of a treatable internal disease.
Frequently asked questions
What can cause itching all over the body at night?
It can come from the skin itself, such as dry skin, scabies, hives, allergic rash and insect bites, or from internal diseases such as liver disease, kidney disease, thyroid disease, diabetes, polycythemia and lymphoma. Itching is often worse at night because the skin loses more water and the hormone that suppresses inflammation falls.
What causes itchy palms at night?
The most common cause is palm blister eczema (dyshidrotic eczema), which has clear, deep-set tapioca-like blisters on the palms and sides of the fingers. Next are scabies on the hands and between the fingers, irritant or allergic contact dermatitis from handwashing and gloves, palmar psoriasis and fungal infection of the palm. In addition, itchy palms and soles with normal-looking skin may be a sign of liver or bile duct disease, which needs further blood tests.
What kind of itchy palms at night needs urgent medical attention?
If the palms and soles itch while the skin looks normal with no rash, together with dark urine, pale stools, or yellowing of the skin and eyes, see a doctor to have your liver and bile duct function checked. If you are pregnant and have itchy palms and soles at night, tell the doctor caring for your pregnancy right away.
What are the small, clear, very itchy blisters on the palms and sides of the fingers?
This picture fits palm blister eczema, or dyshidrotic eczema (pompholyx), which consists of clear blisters deep in the skin like tapioca pearls. They do not burst easily because the palm skin is thick, and the itch is so intense it disturbs sleep. It tends to flare in cycles linked to stress, sweat and contact with water or detergent. It is not a fungal infection as many people think, so you should not buy antifungal cream and apply it yourself.
Can scabies appear on the palms?
Yes. The classic locations for scabies are between the fingers, the inner wrists, the armpits and around the navel, but lesions on the palms can also occur, and are especially common in babies and young children, as well as in crusted scabies, where the palms and soles become thick and scaly. So when applying the anti-mite cream, it must cover everything, including the palms and between the fingers.
Is nighttime itching without a rash dangerous?
Most cases are due to dry skin, which is not dangerous. But if you have chronic itching all over the body without a rash for more than 2 to 6 weeks, or you have weight loss, fever or yellow skin and eyes, see a doctor to look for an internal cause.
Is nighttime itching really a sign of liver disease?
It is possible. Itching from liver disease or bile duct obstruction is usually all over the body without a rash, most prominent on the palms and soles, and worse at night. If you also have yellow skin and eyes or dark urine, your liver function should be checked.
Could nighttime itching be cancer?
This is uncommon, but chronic itching all over the body without a rash is a symptom that may be seen in some lymphomas, especially when there is weight loss, fever, night sweats or enlarged lymph nodes. That is why you should be tested when no other cause is found.
How does scabies cause itching at night?
Scabies mites move and burrow more at night, so the itch is severe at that time. If you itch badly between the fingers, at the wrists and at the waist, and others in the household itch too, think of scabies, and everyone in the household must be treated at the same time.
Why do I still itch at night after using moisturizer?
If you have taken thorough care of your skin and the itch has still not improved, the cause may be more than dry skin. It could be scabies, chronic hives or a sign of an internal disease. See a doctor for further assessment.
What vitamin or mineral deficiencies can cause nighttime itching?
Iron deficiency may cause itching all over the body in some people. It is often seen with fatigue, brittle nails or hair loss. A blood test helps confirm it, and the itch often improves once iron is replaced.
If you have chronic itching all over the body at night, itchy palms at night that disturb your sleep, itching without a rash, or suspect scabies, seeing a dermatologist for a correct diagnosis from the start will help you get targeted treatment and avoid using medicines the wrong way. At Siam Dermatology, our dermatologists examine and diagnose to make clear whether your itch comes from the skin itself or is a sign of an internal disease, and then plan treatment suited to each individual.
References
DermNet NZ. Pompholyx (dyshidrotic eczema). https://dermnetnz.org/topics/pompholyx
DermNet NZ. Scabies. https://dermnetnz.org/topics/scabies
American Academy of Dermatology (AAD). Dyshidrotic eczema: Signs and symptoms. https://www.aad.org/public/diseases/eczema/types/dyshidrotic-eczema
Centers for Disease Control and Prevention (CDC). Scabies: Resources for Health Professionals — Treatment. https://www.cdc.gov/scabies/hcp/
UpToDate. Pruritus: Etiology and patient evaluation. Wolters Kluwer.
Bolognia JL, Schaffer JV, Cerroni L, editors. Dermatology. 4th ed. Elsevier; 2018. (chapters on Pruritus and Eczematous dermatoses)
Written by Dr. Patara Voravutinon, Dermatologist · Last reviewed July 30, 2026
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