Causes

• Sebaceous cysts most often arise from swollen hair follicles. Skin trauma can also induce a cyst to form. A sac of cells is created into which a protein called keratin is secreted
• These cysts are usually found on the face, neck, and trunk
• They are usually slow- growing, painless, freely movable lumps beneath the skin
• Occasionally, however, a cyst will become inflamed and tender

Signs & Symptoms

• Small, non-painful lump beneath the skin, if it becomes infected, you may have redness, tenderness, or increased temperature of the skin over the area.
• Grayish-white, cheesy, foul-smelling material may drain from the cyst.

 Treatment

• Sebaceous cysts are not dangerous and can usually be ignored
• Placing a warm moist cloth (compress) over the area may help the cyst drain and heal
• If you have a small inflamed cyst, your doctor may inject it with a steroid medicine that reduces swelling
• If the cyst becomes swollen, tender, or large, surgical removal may be advised