Penile Swelling: Causes and When to Seek Help - Urology

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Penile issues


Hello doctor, my penis has a lump in the middle section that suddenly appeared.
It feels hard when I press on it and is painful.
There isn't any unusual color, but the center has a slightly white appearance.
What could this be?

Long, 20~29 year old female. Ask Date: 2018/09/17

Dr. Lin Wenxu reply Urology


Please visit a urology clinic in person for a proper evaluation by a physician, who can provide you with an accurate diagnosis.

Reply Date: 2018/09/17

More Info


Penile swelling can be concerning, and it’s important to understand the potential causes and when to seek medical help. Based on your description, it sounds like you are experiencing localized swelling in the middle part of your penis, which is hard to the touch and painful, with a whitish appearance at the center. There are several possible explanations for these symptoms.

1. Peyronie's Disease: This condition involves the development of fibrous scar tissue inside the penis, which can cause curved, painful erections and swelling. The hard area you feel could be the plaque associated with this disease. It often develops over time and can lead to significant discomfort and changes in sexual function.

2. Infection: Conditions such as balanitis (inflammation of the glans) or sexually transmitted infections (STIs) can cause swelling and pain. If there is any discharge, unusual odor, or if the area appears red or inflamed, an infection could be the cause.

3. Trauma or Injury: If you have recently engaged in sexual activity or experienced any trauma to the area, swelling can occur as a result of injury. This could lead to localized swelling and pain.

4. Allergic Reaction or Irritation: Sometimes, irritation from soaps, lotions, or latex (from condoms) can cause localized swelling and discomfort. If you've recently changed products, this could be a factor.

5. Lymphatic Issues: Conditions affecting the lymphatic system, such as lymphedema, can lead to swelling in various parts of the body, including the penis.

Given that you are experiencing pain and the swelling is localized, it is advisable to seek medical attention. Here are some guidelines on when to see a doctor:
- Persistent Symptoms: If the swelling does not resolve within a few days or worsens, it’s important to consult a healthcare provider.

- Severe Pain: If the pain becomes severe or unbearable, it warrants immediate medical evaluation.

- Changes in Urination: If you experience difficulty urinating, blood in the urine, or any other urinary symptoms, seek help promptly.

- Signs of Infection: If you notice any discharge, fever, or other signs of infection, you should see a doctor as soon as possible.

- Changes in Sexual Function: If you notice changes in your ability to achieve or maintain an erection, this should also be evaluated.

During your visit, the doctor will likely perform a physical examination and may order tests such as ultrasound or blood tests to determine the underlying cause of your symptoms. Treatment will depend on the diagnosis and could range from medication for infections to more specialized treatments for conditions like Peyronie's disease.

In summary, while there are various potential causes for penile swelling, the presence of pain and the specific characteristics of the swelling you described suggest that it is important to seek medical evaluation. Early diagnosis and treatment can help prevent complications and address any underlying issues effectively.

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