10 Common Causes For Itchy Bumps On Skin

itchy bumps on skin

You suddenly feel the urge to scratch your skin. When you reach out to scratch you notice there are tiny bumps on your skin. You assume they are mosquito bites. But what if these aren’t mosquito bites and something else?

Almost everyone in this world has experienced itchy bumps on their skin that look like mosquito bites but aren’t at some point in their life. These can be irritating, red, bumpy, itchy patches. In this blog, we will help you explore the common causes that may be causing these itchy bumps and how to treat them. 

What Causes Itchy Bumps On Skin?

Itchy tiny bumps on the skin can become red and irritated and cause rashes and infection on the skin if continuously scratched. If you are experiencing bumpy rashes on your skin, finding a treatment for it is essential. But before looking for a solution it is important to understand its causes. 

There are several factors that may be causing your skin to become itchy and bumpy, we have listed some of the most common causes below.

1. Eczema

Commonly known as Atopic Dermatitis, eczema is a chronic skin condition that causes itchy, irritated, inflamed dry skin. It can sometimes also cause small itchy bumps on the skin. It can also cause rashes on the skin that may vary in color. For people with lighter skin tones rashes are of red color and in darker skin tones they are purple or brownish.

Eczema is believed to be caused by a combination of factors such as genetics, stress, and allergens. Everyone can experience eczema, no matter what age but it is more common in children under the age of 5, then it is termed as baby eczema

In some cases, eczema may disappear but most of the time, it persists and reoccurs as eczema flare-ups throughout life. Even though there is no permanent cure for eczema, itching, dryness, and inflammation associated with it can be easily managed by following a proper skincare routine that includes the use of Eczema shampoo and body wash to keep the affected area clean and an eczema cream to keep the skin moisturized. 

2. Contact Dermatitis

Contact dermatitis as the name suggests appears when the skin comes in contact with a harmful substance. In simpler words, the itchy red bumps caused by contact dermatitis are a reaction of the skin towards those allergens. 

Contact dermatitis comes in two forms: allergic contact dermatitis (ACD) and irritant contact dermatitis (ICD). With allergic contact dermatitis, the skin comes in contact with something you become allergic to such as nickel, metals, or poison ivy. The body then becomes sensitized, and when re-exposed to that same allergen the immune system releases a certain type of T-cells that causes the itchy bumps on the skin to appear–often days later.


With irritant contact dermatitis the skin becomes irritated due to certain irritants upon contact, these can be the chemicals used in beauty products, detergents, and soaps. 

Contact dermatitis can be managed by staying away from the allergens and irritants. But if you are unsure about what is causing these itchy bumps contact your healthcare provider.

3. Hives

Hives cause raised itchy patches on the skin. Hives are caused by an allergic reaction. When you consume or come in contact with something you are allergic to. Itchy, irritating bumps appear on your skin. Some of the common triggers that may cause hives are peanuts, seafood, latex, pollen, and medications. 

Hives, also known as urticaria, have two common types. Acute urticaria is when the hives don’t stay for a long period–usually less than 6 weeks. And chronic urticaria is when the hives last for more than 6 weeks. Antihistamines are usually prescribed by the doctors to get rid of hives.

4. Scabies

Itchy skin bumps are one of the most common symptoms of scabies. Scabies is caused by itch mites also known as Sarcoptes scabiei, they dig their way through the topmost layer of the skin and lay eggs. These then cause intense itching and scratching these tiny bumps can make the condition worse and cause infection.

Scabies usually appear on the chest, wrists, groin area, armpits, and between toes and fingers. The worst thing about it is that it is contagious and can spread from one person to another. So, it is crucial to treat scabies as soon as possible. According to Mayo Clinic, it can easily be treated with the help of medicated skin creams and that kill the mites. 

5. Chickenpox

Likely you have heard the name chickenpox and may have experienced it. Almost everyone in this world used to get chickenpox once in their lifetime–but with vaccines, it is much less common.  Most people experience it in their childhood while others have to bear it when they grow old.

Itchy raised bumps are one of the most prominent features of chickenpox. These bumps and blisters are usually filled with clear liquid. It is believed to be caused by the varicella-zoster virus. It usually lasts for about 10 days and is accompanied by fever, body pain, and headaches. 

The best way to prevent chickenpox is by getting vaccinated. In most cases, the vaccine may prevent chickenpox from appearing but if it still does the symptoms associated with it are milder.

6. Flea Bites

Flea bites are caused by tiny bugs known as vectors, that thrive on the blood of animals and humans. These fleas when biting your skin discharge saliva into your bloodstream. The body’s immune system considers this saliva as an allergen and causes skin reactions. These can be transmitted from animals to humans easily. These bites can cause itchy discolored bumps to appear on the skin. 

These bumps can be very itchy, but scratching them can make the condition worse. It can also lead to different skin infections. Flea bites can be easily treated with over-the-counter anti-itch creams and antihistamines.

7. Dyshidrotic Eczema

Dyshidrotic Eczema comes by other names such as Pompholyx, Acute Palmoplantar Eczema, and hand eczema. It is a common skin condition that causes very itchy tiny bumps on hands and feet. These blisters are usually filled with clear fluid. 

People who experience excessive sweating on hands are feet are more prone to it. This type of eczema can be triggered by several factors like extreme weather, stress, metals, and fungal infections. 

To manage dyshidrotic eczema it is essential to keep the affected area clean with a gentle irritant-free cleanser. And moisturize the skin regularly with a fragrance-free, paraben-free moisturizer. If the itching is very intense consult a doctor they may prescribe anti-itch creams and medications.

8. Folliculitis

This is a common skin condition that appears when the hair follicles become inflamed. This causes red, itchy, inflamed lumps to appear on the skin. It is usually caused by infection due to some bacteria. These bumps can also turn into crusty sores. 

Mild cases of folliculitis can be easily managed with self-care which includes keeping the area clean, avoiding friction on the skin, avoiding shaving the area, and using clean pools and hot tubs. In severe cases, may need medical attention and the use of prescribed ointments and medications.

9. Rosacea

Rosacea can cause a flushing reaction and tiny acne-like bumps on the skin. The affected area may become flushed, and sensitive, and you may experience a burning and stinging sensation.

It is a chronic inflammatory skin condition that usually appears on the face, nose, forehead, cheeks, and chin. Rosacea flare-ups can be triggered by exercise, extreme weather, spicy food, sun exposure, and stress. 

Rosacea is commonly mistaken for acne. Even though there is no permanent cure for it. Flare-ups can be easily managed with oral or topical medications. 

10. Keratosis Pilaris

Keratosis pilaris is a benign extremely common skin condition that causes tiny bumps to appear on the arm’s skin. The skin of the affected area usually becomes rough and stiff resembling sandpaper. These bumps are mostly skin colored but can be reddish and purplish depending on the skin color. 

It is believed to be caused when there is an excess of keratin, a protein found in the skin. These bumps get worse when exposed to cold, dry air. Even though there is no permanent cure for keratosis pilaris its symptoms can be easily managed with a Two-Step Skincare Routine that includes cleaning the affected area with keratosis pilaris shampoo and body wash. And keeping the skin moisturized with a cream for keratosis pilaris. If the condition does not get better with these remedies consult a doctor who may prescribe topical exfoliants and possibly topical retinoids.

When To Consult A Doctor?

To treat those tiny bumps on your skin it is essential to know the underlying cause for it. Sometimes it can be hard to self-diagnose what is causing these bumps. In this case, it is important to consult a doctor or dermatologist as they have experience. If there is uncertainty, a dermatologist may perform a test like a skin biopsy to provide you with an accurate diagnosis. 

If you feel that the itchy rashes and bumps are becoming severe, spreading to other parts of the body, are accompanied by fever and illness, or are oozing and bleeding it is crucial to contact a doctor as they will be able to provide you with the most effective treatment plan to relieve your symptoms. 

Treatment Of Raised Itchy Bumps

The treatment of raised bumps on the skin depends on the underlying cause of it. Sometimes treating the cause can help you get rid of those itchy bumps. But there are a few simple steps that you can take to prevent the condition from getting worse. 

  • Keeping the affected area clean with a hypoallergenic shampoo and body wash.
  • Moisturizing your skin at least twice daily with a fast-absorbing, non-greasy moisturizing cream
  • Regularly washing your clothes and bedding to avoid spreading the infection and bacteria. 
  • Avoid tight clothing or covering the affected area, as sweating and heat can worsen the condition.
  • Use lukewarm water to take a bath instead of hot water.
  • Limit your exposure to the sun and cover your skin with sunscreen after consulting a doctor. 
  • At all costs avoid scratching the affected area as it can lead to other serious infections.
  • Try taking oatmeal baths to soothe the itching and irritation.
  • If the itching is severe consult a doctor who may suggest OTC anti-itch cream or several prescriptions to relieve the affected skin. 


Itchy bumps on the skin can be caused due to several reasons–from eczema, and flea bites, to rosacea. The important thing is the accurate diagnosis of the cause of these bumps with the help of a healthcare provider to treat them. Some itchy rashes that may be contagious should be treated as soon as possible. 

Happy Cappy offers non-prescription products that are specially formulated for dry, itchy, irritated sensitive skin. Our products contain natural ingredients like licorice root extracts, oatmeal extract, and aloe vera that can help soothe itching and irritation. 

Whether you are experiencing that bothersome eczema flare-up or noticed cradle cap on your baby, also known as seborrheic dermatitis. We have something for everyone. Shop today and experience itch-free, healthy, smooth skin. 


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Dr. Eddie Valenzuela is an award winning pediatrician and the founder and CEO of Pediatric Solutions, LLC.

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Why am I experiencing tiny itchy bumps on my skin?

There are several reasons that may be causing those itchy tiny bumps. These include allergic reactions, chronic skin conditions, and fungal, bacterial, parasitic, and viral infections.

Are the itchy bumps on my skin serious?

Most of the itchy skin rashes that may appear as tiny, red bumps are usually not serious. If the rash disappears within a few hours or days then don’t get worried. But if the rash persists and the symptoms start getting worse it is advised to consult a doctor.

Can home remedies treat itchy bumps on the skin?

Home remedies can not treat those itchy bumps. However, they can help relieve the symptoms such as itching, burning, and inflammation. Some common home remedies include
1. Oatmeal baths
2. Applying cold compress
3. Keeping the skin moisturized.

What are the itchy bumps on the arm that look like goosebumps?

Keratosis pilaris is a common skin condition that can cause small bumps on your skin especially on arms that may itch. The bumps can feel rough. Usually, the bumps are skin colored but they may vary from red, purple to brown depending on the skin color.

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