Head bump: 10 common causes (2023)

There are many reasons why you might have a bump or bump on the back of your head. Most are harmless. In rare cases, however, a bump on the head could indicate a more serious problem.

If you notice changes in the lump on your head, if it bleeds or hurts, consult your doctor.

1. Head injury

Hitting your head on a hard object can cause head injuries. If a bump appears on your head after a head injury, it's a sign that your head has been injured and the body is trying to heal.

Some scenarios that can lead to thishead injuriesThey are:

  • car accidents
  • sports collisions
  • cai
  • fierce arguments
  • Blunt trauma

Head injuries can result in a scalp hematoma or blood clot. If you suffer a minor head injury and a lump forms on your head, the bruise that develops is a sign that there is some bleeding under the skin. These bumps usually go away after a few days.

Other traumatic head injuries can cause larger swelling or even bleeding in the brain (intracraniano,epidural, Ehematomas subdurais).

If you suffer a head injury - especially one that causes you to lose consciousness - see your doctor to make sure you're not bleeding internally.

2. Ingrown hairs

If you shave your head, you may get ingrown hairs. This occurs when a shaved hair grows into the skin instead of through it, causing a small, red, firm bump. Sometimes, oneIngrown hairs can get infectedand turn into a pus-filled lump.

Ingrown hairs are generally harmless and often correct themselves as the hair grows. You can prevent ingrown hairs by letting your hair grow out.

3. Folliculitis

folliculitisit is the inflammation or infection of a hair follicle. Bacterial and fungal infections can cause folliculitis. These bumps can be red or look like white pimples.

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This condition is also called:

  • pimples
  • hot tub rash
  • Juckreiz barbers

In addition to bumps on the head, people with folliculitis can also develop on the scalp.itchand pain. If left untreated, infections can turn into open sores.

Treatment for folliculitis includes:

  • daily washing with soap
  • over-the-counter antibiotic creams
  • prescription pills or shampoos

In rare and extreme cases, a professional may need to interveneLaser waxingorelectrolysis.

There are steps you can take to prevent folliculitis, including:

  • don't wear hats
  • don't shave
  • Avoiding pools and hot tubs

4. Seborrheic keratosis

seborrheic ceratosesare not carcinogenicskin growthsthat look like warts. They usually appear on the head and neck of older adults.

These bumps are usually harmless, although they may looksimilar to skin cancer. For this reason, they are rarely treated by doctors. If your doctor is concerned that seborrheic keratoses are turning into skin cancer, they may surgically remove them.

5. Epidermoidzyste

Epidermoidzystenare small, hard bumps that grow under the skin. These slow growing cysts are common on the scalp and face. They do not cause pain and are skin-colored or yellow.

A construction ofkeratinunder the skin is often the cause of epidermoid cysts. They are very rarely cancerous. Sometimes these cysts disappear on their own. They are usually not treated or removed unless they become infected and painful.

6. Sawmills

pilar cystsare pockets filled with keratin that form around hair follicles. Hair cysts usually appear on the scalp. They can vary in size, but are almost always smooth, dome-shaped, and skin-colored.

These cysts are not painful to the touch. They are usually not treated or removed unless they become infected or for cosmetic reasons.

7. Lipoma

Alipomait is a fatty and benign tumor. Lipomas are the most common soft tissue tumors in adults, but they rarely occur in the head. They are most common on the neck and shoulders.

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Lipomas are accumulations of fatty tissue located under the skin. They are usually soft or rubbery to the touch and move slightly when tapped. They are not painful and harmless.

Lipomas usually do not need to be treated. However, if the tumor grows, your doctor may recommend surgery to remove it.

8. Pilomatriz

APilomatrikomIt is a tumor of the hair follicle that develops when the hair follicle cells grow too much. It looks rough because it occurs after the cells under the skin have calcified. Pilomatricomas develop in both children and adults.

These tumors usually appear on the face, head and neck. Usually only a clump forms, which grows slowly over time. These bumps usually don't hurt.

There is a small chance that a pilomatricoma will turn into cancer. For this reason, treatment is usually avoided. If the pilot's ricorn becomes infected, your doctor can surgically remove it.

9. Skin Cancer

Someskin cancerit can develop on skin exposed to the sun frequently and intensely, such as the face or baldness. Skin cancer can appear as small bumps, but it can also appear as sores, spots, or spots.

Most skin cancers on the head do not usually spread. But they still have to be taken seriously. A doctor can make a proper diagnosis that will determine the type of treatment needed.

10. Exostose

Exostoseit is the growth of bone into existing bone. These bony growths usually don't appear until childhood. They can appear on any bone, but they rarely appear on the head.

An X-ray can show whether the bump on your head is an exostosis. The treatment of bone overgrowth depends on the complications, if any. In severe cases, surgery may be required.

When to talk to a doctor

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It can be difficult to determine for yourself whether a bump on the head is cause for concern. While many bumps do not require medical attention, some can be a sign of a serious medical condition.

You should speak with a doctor if the swelling or lump:

  • causes intense pain
  • Change appearance or size
  • oozes pus or discharge
  • bleeding
  • feels hot

You should also talk to a doctor if you notice any of the following:

  • Headaches that get worse or don't go away
  • To vomit
  • balance problems
  • dizziness
  • lethargy
  • memory loss
  • loss of consciousness
  • confusion
  • slurred speech
  • sleep disorders

Most bumps on the head are not cancerous. But there are some types of skin cancer that cause bumps on the scalp or face. These include:

  • Plattenepithelkarzinome (SCCs)form in the outermost layer of the skin. Sometimes they can look like wart-like growths or liver spots. They are usually red or pink, but they can be other colors.
  • Basal cell carcinomas (BCCs)are cancerous growths that develop in the deepest layer of the skin. They can be red or pink and look like bumps, sores, or scars. BCCs representabout 80 percentof skin cancer.
  • Melanoma nodularthey also form in the deeper layer of the skin. These are much rarer but much more likely to spread. They are the deadliest form of skin cancer. These lumps are blue or black.
  • Merkel cell carcinoma (MCC)are rare but aggressive tumors that occur mainly in people over 70 years of age. They appear as a red, pink or purple spot that can sometimes look like an insect bite. They grow quickly and become noticeably larger in just a few weeks.

MajorityHead and neck cancer is more likely to form in the jaw or around the mouth or nose than in the back of the head.

Speak to your doctor if you suspect that the bump on the head could be cancerous. A dermatopathologist will evaluate the lump by:

  • lump examination
  • ask questions about your health
  • Doing a biopsy on the nodule

diagnosis and treatment

(Video) Serious symptoms following a child's head injury

The proper treatment for a bump on the head depends on the cause. A doctor will make a diagnosis before recommending treatment.

To diagnose the cause of swelling or swelling in the head, the doctor can do the following:

  • physical exam
  • blood test
  • skin biopsy
  • imaging, such as B. an X-ray or CT scan, in some cases


For a bump on the head caused by an injury, treatment may include:

  • Eis
  • to relax
  • ointments and bandages

You may also be given medication to help with other injury symptoms unrelated to the swelling.


Infections like folliculitis tend to go away on their own eventually. In some cases, doctors may prescribe an antibiotic cream to apply to infected areas. If the infection persists, doctors may recommendhair removal.

Cysts, growths and benign tumors

Most benign cysts, growths, or tumors do not require treatment. But you might want to remove them anyway. Doctors may perform any of these surgical options:

  • cryosurgeryuses liquid nitrogen to freeze growth.
  • electrosurgeryuses an electric current to remove the growth.
  • shaving excisioncut the growth with a sharp razor.

Doctors can also drain the cysts, but this does not actually remove the cyst. Maybe come back later. It's important not to try to remove or drain a cyst yourself, as this can lead to infection.


The diagnosis of cancer requires a skin biopsy. If the biopsy shows the presence of cancerous cells, the doctor surgically removes the cancer.

Doctors usually remove skin cancer on the head or face withOperation Mohs. This type of surgery allows doctors to see where the cancer cells stop so they don't remove healthy cells.


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Many conditions can cause a bump or bump on the back of the head. Treatment varies according to the cause. Most head bumps are harmless.

If you're not sure what caused the swelling in your head, let your doctor know and monitor the swelling closely. If it changes or any of the following happen, call your doctor immediately:

  • bleeding
  • increased pain
  • growth
  • turning into an open wound


1. What are Bumps and Bruises? - Human Body Facts | Science for Kids | Educational Videos by Mocomi
2. What is a head injury?
(Brain & Spine Foundation)
3. Head Trauma: How to Know When a Bump on the Head is Serious
(Daily Blast LIVE)
4. Coup-Contrecoup Brain Injury Animation
(High Impact)
5. Concussion / Traumatic Brain Injury (TBI)
(Nucleus Medical Media)
6. Traumatic Brain Injury Symptoms
(Psych Hub)
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