Cysts: Is Your Labial Lump a Sebaceous Cyst? - Dermatology

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Pilonidal cyst


Hello doctor, I have a lump on my labia minora that is about the size of a five-dollar coin.
It has been inflamed intermittently for two years and sometimes discharges yellowish-white pus.
Could this be a sebaceous cyst? When I visit the obstetrics and gynecology department at a large hospital, the doctors only examine it visually and say they cannot identify the lump.
When I touch it, they tell me it is folliculitis and only drain it if it is inflamed.
I would like to know if this could possibly be a sebaceous cyst, and whether I should go to a dermatologist or continue seeing an obstetrician-gynecologist.

Xiao Lizi, 20~29 year old female. Ask Date: 2016/02/27

Dr. Wu Yuxin reply Dermatology


If it is a sebaceous cyst that requires surgery, since it is located on the labia minora, it is advisable to consult a gynecologist.

Reply Date: 2016/02/27

More Info


When it comes to understanding lumps or cysts in the genital area, particularly on the labia, it’s essential to consider various possibilities, including sebaceous cysts, follicular cysts, or even other dermatological conditions. Based on your description of a lump the size of a five-yuan coin that has been present for two years, occasionally becoming inflamed and discharging yellowish-white pus, it is indeed possible that you are dealing with a sebaceous cyst, also known as an epidermoid cyst.

Sebaceous cysts are common and typically arise from blocked sebaceous glands, which produce oil (sebum) that lubricates the skin. When these glands become obstructed, the sebum can accumulate, leading to the formation of a cyst. These cysts are usually benign and can vary in size. They may become inflamed or infected, which can cause them to rupture and discharge pus, as you have experienced.

Follicular cysts, on the other hand, are related to hair follicles and can also present similarly. They can be caused by inflammation of the hair follicle, leading to the formation of a lump that may become painful and discharge pus if infected. The distinction between a sebaceous cyst and a follicular cyst can sometimes be challenging to make based solely on visual inspection.

Given that you have already consulted with a gynecologist who has suggested that it might be folliculitis (inflammation of the hair follicle), it would be prudent to seek a second opinion, especially since the lump has persisted for two years and has recurrent episodes of inflammation. If you feel that the gynecologist has not adequately addressed your concerns, visiting a dermatologist could be a beneficial next step. Dermatologists specialize in skin conditions and may provide a more thorough examination and diagnosis.

In terms of treatment, if the lump is indeed a sebaceous cyst or follicular cyst, options may include:
1. Observation: If the cyst is not causing significant discomfort or complications, it may be monitored over time.

2. Drainage: If the cyst becomes infected or painful, a healthcare provider may perform an incision and drainage procedure to relieve symptoms and remove pus.

3. Surgical Removal: For persistent or bothersome cysts, surgical excision may be recommended to remove the cyst entirely, which can prevent recurrence.

Regarding your question about whether to see a dermatologist or continue with gynecology, it may be beneficial to consult a dermatologist. They can provide a focused evaluation of the skin and soft tissue, which may lead to a more definitive diagnosis and appropriate management plan.

In summary, while it is possible that your lump is a sebaceous cyst, it could also be a follicular cyst or another condition. Given the recurrent nature of your symptoms and the duration of the lump, seeking a second opinion from a dermatologist is advisable. They can offer specialized insight and treatment options tailored to your specific situation. Always ensure that any treatment plan is discussed thoroughly with your healthcare provider to address your concerns and health needs effectively.

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