Large, Hard, Small, Painful Lump on Butt Cheek: Causes, Symptoms, Diagnosis.

Lumps on the buttocks are one of those annoying but unfortunately inevitable things. The most common ones appear in form of small bumps on the skin that resemble acne. They however are not considered typical acne.

Seeking medical help for a lump inside, on or near this area can be quite a trial. But as professionals will tell you, there is nothing to be ashamed of or embarrassed about. It is much the same with the way you would seek treatment for acne on your face. Another good thing is that most causes of lumps on the buttocks are not life-threatening. In fact, some lifestyle changes, home remedies and OTC products will greatly improve the situation.

That said, lumps on any part of the body should never be ignored. The reason as to why people will freeze on their seats when a doctor mentions a lump is because lumps are closely associated with cancer. Buttocks may be the last part of the body you expect cancerous lumps to form, but chances should not be taken with this deadly disease.

Painful small lump on butt cheek

Folliculitis is perhaps the most common cause of lump on the buttock. Almost everyone will have to deal with this condition at one time in their lives.

What is it?

Folliculitis is basically inflamed hair follicles. It usually appears as red bumps that form around solitary or multiple hair follicles. Some bumps can have a whiteheads appearance. These bumps can appear on any part of the skin with hair follicles.


Bacterial and fungal infections are the common causes. Others include irritation and blocked hair follicles. You can for example develop this condition after first shavings or after long-term use of antibiotics.

Note that folliculitis bumps form on the skin. Men can sometimes correlate a painful lump in scrotum after a vasectomy with such bumps, especially if they develop on the buttocks and the scrotum.


The most common symptom is formation of red bumps around hair follicles. If infected, the bumps will fill with pus and break open after some time. Gold-colored crusts form on the sore.

Folliculitis tends to be very itchy and painful. Surrounding skin areas feel tender and warm.


Folliculitis is treated with medications to fight infection and reduce swelling. Only severe infections and bumps may require surgical removal or removal of hair with laser therapy.

Self-care measures

  • Avoid wearing tight pants. They encourage sweating which in turn creates a good breeding environment for bacteria and fungi. Sweat is also a potential irritant.
  • If you choose to shave your buttocks, do it right. There are many tips on how to shave that you can learn online.
  • Take a bath after especially after athletic activities or any task that involves a lot of sweating. After the bath, make sure to change your underwear.
  • Use home remedies and OTC products such as used for acne removal. Folliculitis is fairly easy to treat.

Painful lump inside buttocks

A painful lump inside the buttocks is most likely a boil. Boils are not dangerous but can be very painful and cause discomfort especially when sitting. They mostly appear as solitary lumps. Severe folliculitis sometimes forms a cluster of boils known as a carbuncle.


Boils originate in hair follicles and sometimes oil glands. They develop when bacteria invades a blocked hair follicle and causes pus formation. Anyone can get a boil lump inside the buttocks but the following factors increase the chances of developing one:

  • Eczema
  • Having boils elsewhere in the body
  • Sharing personal items or contacting someone with a boil
  • Skin injuries
  • Diseases and conditions that compromise immune system such as diabetes and HIV
  • Smoking


Boils form under the skin but have a white or yellow tip which often breaks open when the boil is ripe, mostly after about 5 days. Initially, a firm, red bump will form around a hair follicle. The bump will gradually expand to about the size of a pea or bigger as pus fills it in. Pus-filled boils are soft to the touch.

The skin around the lump will be red, tender, warm and painful to touch. If the boil doesn’t break open, it will crust at the tip.

Signs of infections such as fever, fatigue and swollen lymph nodes may appear. Small boils will rarely cause such symptoms however.


Boils heal on their own even without treatment. Medications to get rid of bacterial are the common treatment options for boils. A boil on the buttock can also be drained.

Self-care measures

  • Avoid popping a boil on your buttock. Spilled boil contents can spread infection and lead to more boils.
  • Try warm compressing on the boil several times a day. It draws pus closer to the surface where it can drain.
  • Maintain personal hygiene and avoid any activity or habit that can spread bacteria.
  • Try OTC products and home remedies known to effectively treat boils.

Hard lump in the buttock

A hard lump in the buttock can be caused by:


Cysts are very common on skin. Most develop in tissues but can also form in bones. You can for example have a cystic lump at bottom of sternum. A sebaceous cyst is the most likely type to cause a hard lump in the buttock. Sebaceous cysts originate in blocked hair follicles or sebaceous glands. Unlike boils, cysts move deeper into the skin. Cystic bumps don’t develop a visible tip.

Most cysts will cause no pain. Since they are filled with a thick material, they feel like hard lumps under skin that are slightly movable. A cyst can form a large lump in the buttock. If not bothersome, it can be left without treatment. Cysts however don’t disappear without treatment. Your doctor can surgically remove it, drain it or inject it with anti-inflammatory medications.


Lipomas are benign tumors that originate in fatty tissues. They form under the skin and can be felt as rubbery, soft and movable lumps. Thick fatty tissue occurs inside butt cheek, which makes it a likely place to find lipomas. Lipomas that occur deep in muscles are known as intermuscular lipomas. They usually develop into large lumps. A large lump in lower left abdomen can sometimes be an intermuscular lipoma.

A lipoma lump inside the buttock doesn’t need to make you concerned. That is, unless it gets big enough to cause pain or other forms of discomfort. In that case, it can be surgically removed by your doctor. Like cysts, lipomas can also be drained or injected with anti-inflammatory medications. Sometimes, a condition known as fibromyalgia can develop. It is characterized by widespread pain in ligaments, tendons and muscles. This can result in formation of painful lump in calf muscle, clavicle and spine.


Dermatofibromas are small, hard lumps that grow on skin. Most are red or brown in color although some may be pink or purplish. The arms and legs are the common body areas on which dermatofibromas develop but can also arise on any part of the skin including the buttocks.

Generally, dermatofibromas do not grow larger than 1.5 cm in diameter. You can have more than 10 of them.

Skin cancer

Skin cancer is of different types. Non-melanoma cancer originates in skin cells of membranes located just below the superficial layer. It can cause a hard lump under skin. Melanoma cancer is quite rare but more deadly. It develops in the cells that give pigment to the skin (melanocytes). It can start with a painless sore lump or black lump that resembles a mole on the buttocks.

See your doctor if you notice a gradually growing lump under skin or a mole that changes color, grows in size or has a rough top. Other signs you need to get concerned about include fever, lymph nodes that swell in more than one location or lump in lung symptoms.

A lot of resourceful information on topics such as what does a testicular lump feel like, meaning of lump in various parts of the body, types of breast lumps and so on is available today. Most people end up making poor decisions such as suffering the pain and discomfort caused by lumps on the buttock or ignoring painless malignant tumors due to lack of information. Although your doctor should have the final say, learning a thing or two about possible causes and treatment options for different types of lumps can be quite helpful.