a Bump on the Labia: Causes and Concerns - Obstetrics and Gynecology

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May I ask the doctor?


Hello, doctor.
I have a question I would like to ask you: I have a bump on my labia majora that looks like a pimple.
It has been slightly itchy occasionally, but I haven't felt anything unusual otherwise.
This condition has lasted for over a week, and today while showering, I noticed it started to hurt a little when I touched it, but the pimple-like appearance hasn't changed.
What could this symptom be? I believe I have good hygiene habits, so why is this happening?

kk, 20~29 year old female. Ask Date: 2001/02/02

Dr. Wu Zongcheng reply Obstetrics and Gynecology


Response: The presence of pimple-like bumps on the labia can generally be categorized into the following types: (1) Inflammation and blockage of hair follicles or sebaceous glands, similar to acne; (2) Bacterial infections causing irritation of the vulva due to discharge; (3) Lipomas or fibromas; (4) Viral infections such as condyloma acuminatum (genital warts).
Aside from bacterial infections, which may cause pain, the other conditions typically do not present with significant symptoms.
It is advisable to consult a gynecologist for a detailed diagnosis, as identifying the underlying cause is essential for appropriate treatment.

Reply Date: 2001/02/02

More Info


When it comes to a bump on the labia, there are several potential causes that could explain your symptoms. It's important to remember that while some bumps may be benign, others could indicate an underlying condition that requires medical attention. Here are some common causes of bumps on the labia:
1. Folliculitis: This is an inflammation of the hair follicles, often caused by bacteria or irritation. It can present as small red bumps that may itch or be painful. Folliculitis can occur due to shaving, tight clothing, or friction.

2. Cysts: Sebaceous cysts or Bartholin's cysts can develop in the labial area. These are usually painless and can feel like a small lump under the skin. If a cyst becomes infected, it may become painful and swollen.

3. Genital Warts: Caused by the human papillomavirus (HPV), genital warts can appear as small, flesh-colored or gray bumps. They may be itchy or cause discomfort, especially if irritated.

4. Herpes Simplex Virus: If the bump is accompanied by blisters or sores, it could be a sign of genital herpes. This viral infection can cause painful lesions and is often accompanied by flu-like symptoms.

5. Lichen Sclerosus: This is a chronic skin condition that can cause white patches and bumps on the genital area. It may lead to itching, pain, and discomfort.

6. Allergic Reactions or Irritation: Sometimes, products such as soaps, lotions, or laundry detergents can cause allergic reactions or irritation, leading to bumps or rashes in the genital area.

Given that you mentioned the bump has been present for over a week and has started to cause some pain, it would be wise to consult a healthcare provider for a proper evaluation. They may perform a physical examination and, if necessary, order tests to determine the exact cause of the bump.

In terms of hygiene, it's great to hear that you maintain good practices. However, even with good hygiene, skin conditions can still occur due to various factors such as hormonal changes, friction, or even stress.
Here are some recommendations while you await your appointment:
- Avoid Irritation: Try to avoid tight clothing and any activities that may cause friction in the area.
- Gentle Cleansing: Use mild, unscented soap and warm water to clean the area. Avoid harsh soaps or douches, as they can disrupt the natural balance of bacteria.

- Do Not Squeeze or Pick: Avoid trying to pop or squeeze the bump, as this can lead to infection or further irritation.

- Monitor Symptoms: Keep track of any changes in the bump, such as size, color, or any additional symptoms like discharge or fever.

In conclusion, while many bumps on the labia can be benign, it’s essential to have any new or changing lesions evaluated by a healthcare professional. They can provide a proper diagnosis and recommend appropriate treatment if necessary. Your health and peace of mind are important, so don’t hesitate to seek medical advice.

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