Unidentified Lump Near Anus: What Could It Be? - Urology

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I don't know if it's a tumor?


Today, while showering and cleaning the area below, I discovered an unknown object approximately three to four centimeters from the anus.
I had never noticed it before, and upon looking in the mirror, there was no redness or swelling.
I have a habit of masturbation and noticed that the amount I ejaculated today was somewhat low.
I'm wondering if it could be due to a blockage in the vas deferens, but after checking anatomical diagrams, I see that the vas deferens is not located nearby, so I'm unsure what the issue might be.
It shouldn't be a lipoma, right?! That's why I'm consulting you, doctor.
Thank you.

Nianqingren, 20~29 year old female. Ask Date: 2017/04/11

Dr. Li Xinyi reply Urology


It sounds like a benign issue, but it is advisable to consult a urologist or colorectal surgeon for an in-person examination and to discuss it with a physician.

Reply Date: 2017/04/11

More Info


Finding an unidentified lump near the anus can be concerning, and it's important to approach this situation with caution and proper medical guidance. There are several potential causes for a lump in that area, and understanding them can help in determining the next steps.

1. Possible Causes: The lump you described could be a variety of things, including but not limited to:
- Hemorrhoids: Swollen blood vessels in the rectal area can form lumps that may not always be painful or inflamed. They can cause discomfort, especially during bowel movements.

- Anal Abscess: This is a collection of pus that can occur due to infection. It may not always be red or swollen initially but can become painful over time.

- Skin Tags: These are benign growths that can occur around the anal area, often as a result of friction or irritation.

- Cysts: Sebaceous cysts can form in the skin and may appear as lumps. They are generally harmless but can become infected.

- Fistulas: An abnormal connection between the anal canal and the skin can lead to lumps and may require medical intervention.

- Tumors: While less common, both benign and malignant tumors can occur in the anal region.

2. Symptoms to Monitor: It's important to keep an eye on any additional symptoms that may arise, such as:
- Pain or discomfort in the area
- Changes in bowel habits
- Bleeding or discharge
- Changes in the size or shape of the lump
3. Impact on Sexual Health: You mentioned a decrease in ejaculate volume. While this is unlikely to be directly related to the lump, it could be indicative of other underlying issues. Factors such as stress, hormonal changes, or even certain medications can affect ejaculate volume. If the lump is causing anxiety or discomfort, that could also impact sexual function.

4. When to Seek Medical Attention: It is crucial to consult a healthcare provider, preferably a specialist in urology or proctology, to evaluate the lump. They may perform a physical examination and possibly imaging studies to determine the nature of the lump. Early diagnosis is key, especially if there is a risk of infection or other complications.

5. Avoid Self-Diagnosis: While it’s tempting to look up symptoms online, self-diagnosis can lead to unnecessary anxiety and may overlook serious conditions. A healthcare professional can provide a proper diagnosis and treatment plan based on a thorough examination.

6. Treatment Options: Depending on the diagnosis, treatment may vary. For example:
- Hemorrhoids may be treated with lifestyle changes, topical treatments, or procedures.

- An abscess may require drainage and antibiotics.

- Skin tags and cysts can often be removed if they cause discomfort.

In conclusion, while the lump you discovered may not be serious, it is essential to have it evaluated by a healthcare professional to rule out any significant issues. Your sexual health and overall well-being are important, and addressing any concerns promptly can lead to better outcomes.

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