Finding random bumps on your skin can be scary, sending you scrambling to the Internet to look up possible causes, such as skin cancer. According to the American Cancer Society, though, while changes in the skin can sometimes be an early sign of cancer, there are many other reasons for bumps and changes in appearance. If you notice bumps on your skin, consider seeing a physician.
Folliculitis
Folliculitis can cause your skin to develop bumps, which occur when a hair follicle becomes infected with bacteria. The bumps can be small or large and sometimes painful. Folliculitis can be caused by shaving and tight-fitting clothing. It also can be picked up in warm, wet areas -- such as hot tubs and steam rooms -- where bacteria grow and your skin is exposed.
Keratosis Pilaris
Keratosis pilaris can cause small skin bumps that resemble acne. Unlike acne, which is the result of an infected pore, Keratosis pilaris is the product of a clogged hair follicle. The bumps can have white, red or skin-colored appearance, are usually painless and will often decrease with age.
Cherry Angioma
Cherry angiomas are a common cause of skin bumps, varying from a small dot to a 1/4-inch bump. They're red in color, hence the name cherry angioma, and are usually found on the middle of the body -- such as on your stomach or back -- but they can show up anywhere. While most cherry angiomas are a cosmetic issue rather than a dangerous condition, they can change in shape or bleed, sometimes requiring removal by a doctor.
Lipoma
If you've noticed a skin bump that is rooted deep in the skin, it may be a fatty tumor called a limpoma. Since most lipomas are harmless, removal is uncommon unless they become painful. Most, but not all, lipomas are benign, meaning they are non-cancerous. If you notice a lipoma, it's wise to contact a dermatologist, who can determine which type of lipoma you may have.
Sebaceous Cysts
Sebaceous cysts cause bumps on the skin and usually are found in areas where oil is produced, such as your face and groin. They are caused by hair follicles that swell after becoming clogged with dead skin cells. Sebaceous cysts are usually skin-colored, and aren't threatening. Cysts can become painful or inflamed, and a foul, thick liquid may drain from the area. They, too, can be removed by a physician.
Talk to Your Doctor
With so many causes and symptoms for skin bumps, you may need to visit your doctor, who can give you a proper diagnosis and suggest appropriate treatment options.
