Bleeding Lump on Labia: Possible Causes and What to Do - Obstetrics and Gynecology

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Bleeding from a genital mass?


About three or four days ago, I noticed a lump on my labia that felt like a mosquito bite and was slightly painful.
I initially thought it was indeed a mosquito bite, but it hasn't gone away, and today it started to bleed.
What could this be?

Ms. Wu, 20~29 year old female. Ask Date: 2020/03/09

Dr. Wu Xianghui reply Obstetrics and Gynecology


Common causes of redness and swelling in the genital area include folliculitis of the pubic hair and Bartholin's gland cysts, among others.
It is recommended to visit a gynecology specialty clinic for treatment and evaluation.

Reply Date: 2020/03/09

More Info


Bleeding lumps on the labia can be concerning and may arise from various causes. Given your description of a lump that feels like a mosquito bite, accompanied by some pain and bleeding, there are several potential explanations to consider.

1. Follicular Cyst or Bartholin's Gland Cyst: One common cause of lumps in the labial area is a cyst. Follicular cysts can develop when hair follicles become blocked, leading to swelling and sometimes tenderness. Bartholin's gland cysts occur when the glands that lubricate the vagina become blocked, resulting in a lump that can become painful and may bleed if irritated.

2. Infection or Abscess: An infection in the area can lead to the formation of an abscess, which is a collection of pus that can cause swelling, pain, and bleeding. Conditions such as bacterial vaginosis or sexually transmitted infections (STIs) could lead to such symptoms. If the lump is red, warm, and increasingly painful, it may indicate an infection that requires medical attention.

3. Trauma or Irritation: Sometimes, minor trauma or irritation from activities such as shaving, wearing tight clothing, or sexual activity can lead to localized swelling and bleeding. If the area has been subjected to friction or injury, this could explain the symptoms.

4. Skin Conditions: Various dermatological conditions, such as molluscum contagiosum, warts, or herpes simplex virus lesions, can present as lumps on the labia. These conditions may also cause bleeding if the lesions are scratched or irritated.

5. Allergic Reaction: An allergic reaction to products such as soaps, lotions, or even latex from condoms can cause localized swelling and irritation, which might lead to bleeding if the area is scratched or inflamed.

6. Vascular Lesions: Sometimes, vascular lesions such as hemangiomas can appear as lumps and may bleed. These are usually benign but should be evaluated by a healthcare professional.


What to Do
Given the symptoms you are experiencing, it is essential to seek medical attention. Here are some steps you can take:
- Consult a Healthcare Provider: Schedule an appointment with a gynecologist or a healthcare provider who specializes in women's health. They can perform a physical examination and may recommend tests such as a culture or ultrasound to determine the cause of the lump and bleeding.

- Avoid Irritation: Until you can see a healthcare provider, avoid any activities that may irritate the area further, such as sexual intercourse, vigorous exercise, or using harsh soaps.

- Monitor Symptoms: Keep track of any changes in the lump, such as size, color, or pain level, as well as any additional symptoms like fever or unusual discharge. This information can be helpful for your healthcare provider.

- Do Not Self-Diagnose: While it can be tempting to search for answers online, self-diagnosis can lead to unnecessary anxiety or mismanagement of the condition. Professional evaluation is crucial.

In conclusion, while there are several potential causes for a bleeding lump on the labia, it is vital to consult a healthcare professional for an accurate diagnosis and appropriate treatment. Early intervention can prevent complications and provide peace of mind.

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