Sebaceous Cyst
A sebaceous cyst is a non-cancerous, closed sac under the skin that is filled with a substance called sebum. Sebum is an oily, waxy material produced by sebaceous glands, which are found in hair follicles. These cysts form when the sebaceous gland or its duct becomes blocked, causing the sebum to accumulate and form a lump. Sebaceous cysts are generally harmless but can become inflamed or infected, causing discomfort or potential complications.
Symptoms
- Painless Lump: The most common symptom is the presence of a small, round, firm lump under the skin, often on the face, neck, back, or scalp.
- Redness or Swelling: If the cyst becomes infected or inflamed, the skin around it may become red, swollen, and tender.
- Discharge: In some cases, the cyst may rupture or be squeezed, leading to a thick, yellowish, or foul-smelling discharge from the cyst.
- Pain: If the cyst becomes infected, it may become painful and tender to the touch.
Treatment Options
If the cyst is painful or infected, a doctor may perform a procedure to drain the cyst. This can relieve discomfort but does not remove the cyst itself.
The most effective treatment for sebaceous cysts is surgical excision. A healthcare provider will make a small incision, remove the cyst and its sac (if possible), and close the wound with stitches. This reduces the likelihood of the cyst returning.
If the cyst is infected, antibiotics may be prescribed to treat the infection. If an abscess has formed, it may need to be drained by a healthcare professional.
Sebaceous cysts are generally harmless, benign growths under the skin that can be easily treated if they become problematic. Most cysts can be managed with simple procedures, but surgical excision is the most effective way to remove them permanently. If you experience frequent cysts, or if a cyst causes pain, infection, or other concerns, it’s important to consult a healthcare provider for diagnosis and appropriate treatment.
Causes and Risk Factors
- Blocked Sebaceous Gland Ducts: The most common cause is the blockage of the duct in a sebaceous gland, which leads to the accumulation of sebum inside the gland.
- Trauma or Injury: A wound, scratch, or surgical incision can lead to the development of a cyst if a sebaceous gland or duct becomes damaged and blocked.
- Genetic Factors: Some individuals may be genetically predisposed to developing multiple sebaceous cysts, a condition known as Gardner’s syndrome.
Prevention and Management
- Proper Skin Care: Keeping the skin clean and avoiding excessive scrubbing or irritation may help prevent blocked sebaceous glands.
- Avoid Squeezing Cysts: Squeezing or attempting to drain cysts on your own can increase the risk of infection and scarring.
- Manage Underlying Skin Conditions: Treating acne or other skin conditions that cause blocked pores can help reduce the risk of developing cysts.