Red Bump on Glans: Causes and Treatment for Urethral Concerns - Urology

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There is a bump at the junction of the foreskin and the glans that resembles a mosquito bite?


Hello doctor, I have a small bump at the junction of my foreskin and glans that looks like a mosquito bite.
It is a bit itchy but not painful, and there is no discharge.
It is just red, and I do not have a problem with phimosis, nor do I have any sexual experience.
How should I handle this?

An An, 10~19 year old female. Ask Date: 2017/04/23

Dr. Du Shixi reply Urology


Hello: Please keep the area clean and dry.
Avoid using soap for the time being; rinse with clean water and pat dry.
If it does not improve in three days, seek medical attention.

Reply Date: 2017/04/23

More Info


When it comes to a red bump on the glans (the head of the penis), there are several potential causes to consider. Given that you mentioned the bump resembles a mosquito bite, is itchy, and does not produce any discharge, it could be related to a few common conditions. Here’s a breakdown of possible causes and treatment options:

Possible Causes
1. Allergic Reaction or Irritation: Sometimes, skin reactions can occur due to contact with soaps, lotions, or laundry detergents. If you’ve recently changed any products or had contact with something new, this could be a cause.

2. Folliculitis: This is an inflammation of the hair follicles, which can occur in the genital area. It can present as small red bumps and may be itchy.

3. Pearly Penile Papules: These are small, harmless bumps that can appear around the glans and are often mistaken for a rash or infection. They are normal anatomical variations and do not require treatment.

4. Genital Warts: Caused by the human papillomavirus (HPV), these can appear as small, flesh-colored or red bumps. They are usually painless but can be itchy.

5. Infections: While you mentioned there is no discharge, infections such as candidiasis (yeast infection) or other sexually transmitted infections (STIs) can sometimes present with similar symptoms.


Treatment Options
1. Avoid Irritants: If you suspect an allergic reaction, try to identify and avoid any potential irritants. Use mild, unscented soaps and avoid any products that may cause irritation.

2. Topical Treatments: Over-the-counter hydrocortisone cream can help reduce itching and inflammation. However, it’s best to consult with a healthcare provider before applying any medication to the genital area.

3. Good Hygiene: Maintain proper hygiene by gently washing the area with warm water and mild soap. Ensure the area is dry after washing, as moisture can exacerbate irritation.

4. Consult a Healthcare Provider: Since you have not experienced any sexual activity, the likelihood of STIs is lower, but it’s still important to consult a healthcare provider for an accurate diagnosis. They may perform a physical examination and, if necessary, take a swab for further testing.

5. Avoid Self-Diagnosis: While it can be tempting to self-diagnose based on online information, it’s crucial to seek professional medical advice. Conditions like genital warts or infections may require specific treatments that only a healthcare provider can prescribe.


When to Seek Immediate Care
If you experience any of the following symptoms, seek medical attention promptly:
- Increased pain or swelling
- Development of sores or blisters
- Fever or systemic symptoms
- Persistent itching or discomfort that does not improve
In summary, while a red bump on the glans can be concerning, many causes are benign and treatable. It’s essential to consult with a healthcare provider for an accurate diagnosis and appropriate treatment tailored to your specific situation. Taking proactive steps in maintaining genital hygiene and avoiding irritants can also help alleviate symptoms.

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