the Normal Variations of the Glans Penis and Its Health Concerns - Urology

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Coronal sulcus of the glans penis


Doctor, the skin in the middle of the coronal sulcus has turned white, while the other areas are normal flesh-colored.
Is this normal, or could it be a sign of a sexually transmitted infection?

Xiao Xiao, 30~39 year old female. Ask Date: 2021/06/06

Dr. Du Shixi reply Urology


Hello: If it is just a change in color, it is mostly not caused by a sexually transmitted infection (STI).
STIs typically cause skin lesions, rashes, blisters, redness, or lumps.
Wishing you good health.
Please keep the area dry and clean.

Reply Date: 2021/06/06

More Info


The appearance of the glans penis and surrounding areas can vary significantly among individuals, and it is important to understand what constitutes normal variations versus potential health concerns. The glans penis, or the head of the penis, is typically a sensitive area that can exhibit changes in color, texture, and appearance due to various factors, including natural anatomical variations, hygiene practices, and health conditions.

In your case, you mentioned that the skin in the coronal sulcus (the groove between the glans and the shaft of the penis) appears white, while the surrounding skin maintains a normal flesh color. This change in coloration can be attributed to several benign conditions, but it is essential to differentiate between normal variations and signs of potential health issues.

1. Normal Variations: The skin of the glans penis can sometimes appear lighter or even whitish due to the presence of keratin, a protein that can accumulate in certain areas. This is often seen in individuals who are uncircumcised, as the skin may not be exposed to the same environmental factors as circumcised individuals. Additionally, the presence of smegma, a natural secretion, can also contribute to changes in coloration.

2. Health Concerns: While a white appearance in the coronal sulcus can be benign, it is important to consider other symptoms that may indicate a health concern. For instance, if the area is accompanied by itching, burning, pain, or unusual discharge, it could suggest an infection or a sexually transmitted infection (STI). Conditions such as balanitis (inflammation of the glans), lichen sclerosus (a skin condition that can cause white patches), or even fungal infections could lead to changes in color and texture.

3. When to Seek Medical Attention: If the white area persists, changes in appearance, or if you experience any discomfort, it is advisable to consult a healthcare provider. A thorough examination can help determine whether the change is a normal variation or if it requires treatment. Your healthcare provider may perform a physical examination and, if necessary, recommend tests to rule out infections or other conditions.

4. Preventive Measures: Maintaining good hygiene is crucial for the health of the genital area. Regular washing with mild soap and water can help prevent the buildup of smegma and reduce the risk of infections. Additionally, practicing safe sex by using condoms can help prevent STIs.

5. Conclusion: In summary, while the white appearance of the skin in the coronal sulcus may be a normal variation, it is essential to monitor for any accompanying symptoms. If you have concerns about your genital health or if the appearance changes, seeking medical advice is the best course of action. A healthcare professional can provide personalized guidance and reassurance based on your specific situation. Remember, open communication with your healthcare provider is key to maintaining sexual health and addressing any concerns you may have.

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