White Coating on the Penis: Causes and Solutions

Long and white?

Hello doctor, my penis has phimosis, and about a month ago, I started developing a white substance on the glans that resembles oral thrush.
When I wash it, the white substance can be rubbed off, resembling white eraser shavings, and when I get closer to smell it, I notice an unpleasant odor.
When I squeeze the area just below the glans where it connects to the shaft, I sometimes feel a slight stinging pain.
I have been using soap to clean it and removing the white substance.
After washing, it feels like the skin of my penis, especially the glans, has become very thin.
Sometimes after intercourse, I feel a stinging sensation near the junction of the shaft and glans, as if the skin is broken.
The situation improved for a while, and the white substance decreased, but recently it has returned to the original condition.
I have been married for two years and have not had sexual relations with anyone other than my wife.
Could my wife get infected? I am unsure how to handle this.
Thank you.

Tǎoyàn Xiǎobái, 20~29 year old female. Ask Date: 2005/10/25

Dr. Xu Weikai reply Urology

Hello, based on your symptoms, it seems you may have a fungal infection or a significant buildup of smegma.
The skin on the glans penis is a mucous membrane and is quite delicate.
Generally, when cleaning, using just water is sufficient; there is no need for soap or other products, as this can lead to mucosal injury and a reduction in natural oils, making it easier for fungi to invade, which can create a white film.
If possible, gently lift and remove it to promote faster healing.

Recommendations: Avoid using soap to clean the glans, and do not use water that is too hot; it is best to use cool water.
After washing, you may apply some baby oil to replenish oils.

As for transmission, there is a possibility, especially in women, who may exhibit symptoms such as abnormal vaginal discharge.
It is advisable for both partners to seek medical attention simultaneously for concurrent treatment to prevent back-and-forth transmission, similar to a game of ping pong.
This is not a sexually transmitted infection; rather, fungi are present in the air everywhere, and any slight discomfort can lead to infection.
Sincerely,
Dr.
Hsu Wei-Kai
Director, Urology Department
Taitung Hospital, Department of Health, Executive Yuan

Reply Date: 2005/10/25

More Info

The presence of a white coating on the penis, particularly in the context of phimosis (a condition where the foreskin cannot be easily retracted), can be concerning and may indicate several underlying issues. The symptoms you've described, including the white substance resembling a coating similar to oral thrush, a foul odor, and occasional pain, suggest a possible case of smegma accumulation or a fungal infection.

Smegma is a natural substance composed of dead skin cells, oils, and moisture that can accumulate under the foreskin. In uncircumcised males, smegma can build up if proper hygiene is not maintained. This accumulation can lead to irritation, inflammation, and sometimes infection, which may explain the discomfort and pain you are experiencing. The white, crumbly substance you described, which resembles eraser shavings, is typical of smegma.

Additionally, the foul odor you mentioned could indicate a bacterial or fungal infection, particularly if the area is not cleaned regularly. The presence of a thin, painful skin layer after washing could suggest irritation or inflammation of the glans (the head of the penis) and the surrounding skin, which can occur due to excessive friction or improper cleaning techniques.

In terms of your concerns about transmission to your wife, if the white substance is indeed smegma and there are no signs of an active infection (such as sores, lesions, or significant redness), it is unlikely to be contagious. However, if there is a fungal infection (like candidiasis) or a sexually transmitted infection (STI), there is a risk of transmission during sexual activity. It is essential to consult a healthcare professional for a proper diagnosis and treatment plan.

Here are some recommendations for managing this condition:
1. Hygiene: Maintain good hygiene by gently retracting the foreskin (if possible) and cleaning the area with warm water daily. Avoid using harsh soaps, as they can irritate the sensitive skin of the penis.

2. Moisturization: If the skin appears thin or irritated, consider using a gentle, fragrance-free moisturizer to help soothe the area.
3. Avoid Irritants: Be cautious with products that may irritate the genital area, such as scented soaps, lotions, or lubricants.

4. Consult a Doctor: Given the symptoms you are experiencing, it is crucial to see a healthcare provider, preferably a urologist or dermatologist. They can perform a physical examination, possibly conduct tests, and provide a definitive diagnosis. If an infection is present, appropriate antifungal or antibacterial medications may be prescribed.

5. Consider Circumcision: If phimosis is causing recurrent issues, discussing circumcision with your doctor may be beneficial. This procedure can help prevent smegma buildup and reduce the risk of infections.

6. Sexual Health: If you have concerns about STIs, consider getting tested. Open communication with your partner about sexual health is essential for both of your well-being.

In summary, while the white coating you are experiencing may be related to smegma accumulation, it is essential to seek medical advice to rule out any infections or other underlying conditions. Proper hygiene and care can significantly improve your symptoms and overall genital health.

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