Rash on the buttocks: causes, diagnosis and treatment.


The rash is uncomfortable no matter where it occurs, but there is something particularly unpleasant about finding a new rash on the buttocks. Treatment is usually delayed for fear of seeing a doctor. Fortunately, there are many common causes and simple treatments for a skin rash that appears on the buttocks.

Skin irritation or infection can cause an itchy rash, and scratching at the itch can increase irritation. Many types of rashes on the buttocks can be safely treated at home with over-the-counter medications or home remedies. And if you still need to see a doctor, try not to worry; They've seen it all before

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Common causes

The most common causes of butt rash usually start with skin irritation. Sometimes a small cut, a new laundry detergent, moisture, sitting, or sweating can irritate the skin, and scratches can lead to redness and even more itchiness.

Contact dermatitis

Contact dermatitis occurs when your skin comes into contact with a substance that irritates it and causes symptoms such as redness, itching, or burning. Possible substances that can cause a rash on the buttocks include soap, shower gels, lotion, laundry detergent, or new underwear. Contact dermatitis can also occur when you are allergic to a substance.

Contact dermatitis usually causes severe itching, a red rash, and dry skin. You may also feel burning, tingling, hives , or blisters. Scratching often aggravates symptoms.

The best way to treat a contact dermatitis rash is to find out which substance is irritating your skin and eliminate it from your daily routine. Until then, try not to scratch your skin and try a home remedy to soothe the redness and itchiness. A cold compress or an oatmeal bath can soothe your skin. An over-the-counter hydrocortisone cream can also provide much-needed relief.

Eczema (atopic dermatitis)

Eczema , also known as atopic dermatitis, is a common skin condition that causes inflammation of the skin. The most common symptom is a red, swollen, and itchy rash. It is also possible the appearance of chapped skin, which "weeps" with a clear liquid. Eczema is believed to be caused by a combination of genetic and environmental factors. It is usually treated with topical moisturizers or steroids.

Eczema is not contagious or communicable. If you are prone to hay fever or asthma , you may have a higher risk of developing skin eczema.

Treatments for eczema are similar to those for contact dermatitis. Avoid irritants and relieve pain and itching with cold compresses and hydrocortisone cream. If you don't notice any improvement after trying home remedies, see your dermatologist or doctor.

Yeast infections

Candidiasis occurs when Candida yeast grows at an uncontrolled rate and causes an infection. This yeast generally lives on the skin and in the body without causing any problems. However, when it starts to grow, it can lead to a nasty, itchy infection.

Yeast thrives in warm, humid places, such as skin folds, so it is not uncommon for a yeast infection to develop near or around the anus. The heat and moisture that can accumulate around the anus make it an ideal environment for yeast to grow. It has been estimated that up to 40% of cases of anal itching may be due to a yeast infection.

Common symptoms of a yeast infection include redness and itching. This infection requires treatment with antifungal medications. See your doctor if you think you have a yeast infection on the buttocks. Your doctor will be able to diagnose your condition and prescribe the correct antifungal treatment.

Folliculitis (gluteal acne)

Folliculitis is a common skin infection that manifests as pimple-like skin sores. If you notice pimples on your buttocks that don't itch, it could be folliculitis. Folliculitis is an infection of the hair follicles. As soon as oil or dirt enters the follicle, acne breakouts occur.

Acute folliculitis usually occurs quickly after the hair follicles are damaged. Possible causes of damage include shaving, rubbing the skin, wearing tight clothing, or rubbing the skin folds. If the skin is moist and warm, such as the skin around the anus, an infection can occur.

If you've recently developed pimples on your buttocks, think about what you were doing before it happened. Staying in a hot tub or riding a bike on a hot day can damage hair follicles and promote bacterial growth in hair follicles. Folliculitis can cause itching and mild pain.

Fortunately, most cases of folliculitis clear up on their own if you have a healthy immune system. Using a warm compress several times a day can provide some relief and allow the hair follicles to soften. Once the folliculitis on the buttocks has healed, do not shave the area for at least a month.

To prevent folliculitis on the buttocks, avoid tight underwear and clothing, especially in hot and humid climates. If you decide to shave this area, use a quality moisturizing shaving cream and shave with a grainy shave to avoid damaging the hair follicles.


Another fungal infection that can cause a rash on the buttocks is ringworm, also known as ringworm . Jock itch is a common infection with tinea cruris. Since this fungus thrives in hot and humid environments, the groin is a common site of infection. A yeast infection around the anus can be itchy and painful. The rash is usually red and circular or ring-shaped.

Ringworm is more likely to occur in hot climates, when sweat and moisture are more likely to collect in skin folds. Ringworm can often be treated at home with over-the-counter antifungal creams. If you don't see relief after using the cream as directed, contact your doctor for testing and treatment.

Heat rash (heat rash)

If you get a rash on your buttocks after spending a day outside in the heat and humidity, you may have a heat rash. Heat rashes are common in the groin area, including the buttocks, and appear as clumps of bright red pimples or small blisters. Heat rashes form in areas of the body that can trap heat and moisture.

To treat a heat rash, first move indoors or to a cooler area. Change out of sweaty clothes and do your best to keep the area clean and dry. Applying a small amount of powder can help with itching. Avoid using lotions or ointments, as these products only add more moisture and make heat rashes worse.

Heat rash usually goes away on its own. If you begin to experience other symptoms of heat, such as muscle cramps, exhaustion, nausea, or dizziness, move to a cooler area immediately to rest and rehydrate.

Genital herpes

Genital herpes is a sexually transmitted infection caused by the herpes simplex virus. Many people with herpes have no symptoms; others have outbreaks with open sores.

Herpes sores usually appear as blisters on the lower back, buttocks, and around the anus; they can also be present around the mouth or genitals. When the blisters burst, they leave open, painful sores.

Herpes is contagious, especially if someone has open blisters. Only a doctor can diagnose herpes. Although there is no cure, the condition can be treated.


Hemorrhoids can sometimes be mistaken for a rash on the buttocks. This common condition is not a rash at all, but rather swollen veins that look like varicose veins . Internal hemorrhoids are inside the rectum and are not visible from the outside. In contrast, external hemorrhoids appear around the anus and can appear as a rash.

Hemorrhoids can cause severe itching, pain, discomfort, and bleeding. They often occur as a result of straining during bowel movements. To prevent hemorrhoids, eat plenty of water and fiber to prevent constipation . Choose fresh fruits and vegetables frequently, as well as whole grains. Physical activity can also help prevent constipation, which puts pressure on the veins in and around the anus.

Intestinal worm

A less common cause of injury to the buttocks is roundworm, a parasitic infection caused by the ascaris Enterobius vermicularis. Although pinworms can affect anyone, it is most common in young children, people who live in institutions, and anyone who lives with someone who has pinworms.

Pinworms cause mild itching in and around the anus, and some people have no symptoms. Itching occurs when a female roundworm lays eggs on the skin. As terrible as it may sound, it is relatively easy to deal with. Your doctor will usually prescribe mebendazole, pyrantella pamoate, or albendazole to kill pinworms and prevent future infections.

To diagnose pinworms, your doctor will likely take a piece of clear tape to collect a sample from around the anus. The tape is then examined for pinworm eggs under a microscope.


Psoriasis is a chronic autoimmune disease that occurs when the body produces new skin cells too quickly. Instead of peeling off as usual, old skin cells build up and form dry, itchy patches on the skin. Psoriasis patches may appear on the buttocks or in the groin area.

The most common type of psoriasis, plaque psoriasis , appears as thick, raised patches of dry skin. The spots are often itchy and made worse by scratching.

If you suspect you have psoriasis, see your dermatologist or doctor. They will help to correctly determine the diagnosis and prescribe treatment. The first line of treatment usually includes a steroid ointment, and stronger options are available when needed.

Less common causes

While most butt rash is common and easy to treat, others are a bit more complicated. Less common causes require a visit to your healthcare professional or dermatologist and prescribed treatment.

Follicular keratosis

Keratosis of the hair , sometimes called "chicken skin," is a benign skin disorder that causes small red bumps on the skin. These small bumps are plugs of dead skin cells and are usually dry and itchy. Capillary keratosis is harmless and usually resolves on its own.

To treat hair keratosis, gently exfoliate your skin in the shower and then apply a quality moisturizer regularly to prevent your skin from drying out. If home self-care doesn't work, see your doctor or dermatologist.


Intertrigo is a type of dermatitis caused by the skin rubbing against itself (for example, the skin in a skin fold), causing moisture and friction. Symptoms include swelling, redness, and peeling. This can occur near the anus or between the buttocks and the back of the thighs. If the skin is irritated, a bacterial or fungal infection can occur.

See your doctor if you suspect you may have diaper rash. Treatment will depend on the degree of skin irritation and the type of infection.


Shingles is caused by the herpes zoster virus and causes a painful rash on one side of the body or on the face. Most people with shingles first notice pain, numbness, and tingling, even before the rash appears. The rash itself consists of blisters, which usually crust over in about seven to ten days and disappear in four weeks. Other symptoms of shingles include fever, headache, chills, and an upset stomach.

Talk to your doctor to see if you have shingles and start treatment. To soothe the rash, try over-the-counter pain relievers, cold compresses, oatmeal baths, and calamine lotion. Your healthcare provider may also prescribe antiviral medications to shorten the duration.

Lichen sclerosus

Lichen sclerosus is a chronic condition that occurs most often in postmenopausal women. This rare condition causes patches of thin, white skin around the genitals and anus. Other symptoms include redness, itching, and pain. These areas of the skin can also tear or bleed.

Lichen sclerosus can also cause painful intercourse, urinary retention, and constipation. If you are concerned that you may have lichen sclerosus, see your doctor immediately to begin corticosteroid therapy and see your doctor regularly to monitor your condition.

Cutaneous T-cell lymphoma

Cutaneous T-cell lymphoma is a rare type of blood cancer that first appears as a rash in areas of the body that do not receive much sunlight. This can be tricky to diagnose as the rash looks like eczema.

A red rash is usually itchy at first. Over time, flat patches of dry skin appear on the skin, followed by red, raised, itchy patches. As cancer spreads, patches of skin can turn into plaques and tumors that crack and look like sores.

If you've treated a rash that looks like eczema that won't go away, see a dermatologist or doctor.

Home remedies

The first step in treating a rash at home is also the most difficult: stop itching. Easier said than done, to say the least, but scratching further irritates the skin and makes the rash more intense. Choose home remedies that help relieve itching, including:

  • Oatmeal bath
  • Cold compress
  • From sunburn
  • A fragrance-free moisturizer (try first on a small area of skin)
  • 1% hydrocortisone cream

Help prevent skin irritation by applying mild soaps and lotions to your buttocks that are free of artificial colors and fragrances. Always wash new clothing and underwear before putting them on to rinse off the product or ship leftovers. Choose a mild detergent for sensitive skin.

If the rash is near the anus, keep the area clean and dry to soothe it. Use soft toilet paper to gently wipe after a bowel movement. Avoid removing the rash from your stool, as this can further irritate the rash.

Avoid rubbing your hair too hard or washing it in the shower, as this can further irritate your hair. After you shower, gently pat the rash dry and choose loose-fitting cotton underwear.

If you are concerned about hemorrhoids, include fiber supplements in your diet to prevent constipation and tension.

When to contact a healthcare provider

Many buttock rashes can be treated at home. However, if home remedies don't improve the condition after a few weeks, see your doctor. Call your doctor if you have rectal bleeding or a fever in addition to the rash. Other signs that it's time to see a doctor right away include:

  • The rash appears suddenly and spreads quickly.
  • The rash blisters and leaves open sores.
  • The rash becomes painful.
  • The rash shows signs of infection, such as yellow or green pus, inflammation, crusting, or pain.


Your healthcare provider will begin by taking a closer look at your history of when the rash started, how it feels, what makes it worse or better, and what remedies you have tried. They then examine the rash. Your GP or healthcare provider can make a diagnosis, but if not, you will most likely be referred to a dermatologist.

During your first visit to a dermatologist, your doctor will ask you questions about the rash and any new products or soaps you have used. After a dermatologist examines the rash, they may order diagnostic tests. Many rashes can be diagnosed with a careful history and physical exam. Others, however, may require laboratory testing.

If your dermatologist suspects a fungal infection, you can get a culture of the fungus by scraping off some of the scaly rash and sending it to a lab for examination under a microscope. If your healthcare provider suspects you have a pinworm infection, he or she will take a sample of your skin with a piece of clear tape and then examine it under a microscope to look for pinworm eggs.

Watch out

Treatment for a buttock rash will depend on the cause. Your healthcare professional may recommend starting on a steroid cream to relieve inflammation and itching. A rash caused by fungus or ringworm requires antifungal medication.

If your healthcare provider prescribes a steroid, such as prednisone, take it exactly as directed. Once the rash has healed, you will often want to reduce your medication, but this can lead to a rebound. This happens when steroid use stops abruptly and the rash reappears more intensely than before.

Get the word of drug information

A rash on the buttocks is a pain, you know. Fortunately, most butt rash can be quickly and easily treated at home. Keep the area clean and dry to avoid irritation. To relieve itching, use calamine lotion or oatmeal baths.

If home remedies don't work, see your doctor. They will help you determine the cause of the rash and also advise you on effective treatment. If your rash becomes painful or appears infected, see a dermatologist or doctor immediately.

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