Penile Stones: Causes, Symptoms, and Health Implications - Urology

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Penile glans and coronal sulcus calculi?


Actually, this happened a long time ago, but I would like to ask for clarification.
Between 1997 and 2001, I had a habit of drinking coffee and long-distance running, but I did not drink much water.
In 2001, I noticed a swollen mass under the foreskin and in the coronal sulcus of the glans, which felt hard to the touch.
In 2002, after drinking a lot of beer, I felt itching on the glans and decided to retract the foreskin (this was the first time I did so due to phimosis, and it was painful and took a long time).
I was surprised to find that the mass under the foreskin was a stone—yellowish in color, with the larger ones about one centimeter in diameter, and there were many of them.
The stones in the coronal sulcus fell off easily when nudged, and could be squeezed open, emitting a somewhat foul odor.
All the stones were flushed down the toilet.
A year later, I experienced my first gout attack and went to a clinic for a health check, where my blood uric acid levels were found to be elevated.
Since then, I have made it a habit to retract the foreskin and clean the glans every time I shower.

Could you please explain what those stones were? Why do stones form under the foreskin? Is it related to my diet or my constitution? Also, since I had stones under the foreskin, do I have stones in my kidneys or bladder as well? Additionally, I have noticed that after ejaculation, my urination becomes very smooth and the urine stream is larger.
Why does this happen? Is it because I ejaculate infrequently?

Hung, 30~39 year old female. Ask Date: 2010/01/04

Dr. Xu Weikai reply Urology


It appears to be just smegma, which can accumulate over the years and form a hard appearance, resembling a stone, and is unrelated to uric acid.
Smegma is a substance left behind after the epidermal turnover of the penis, and everyone produces it daily, similar to dandruff.
It can be easily cleaned, so there's no need to overthink it.

Reply Date: 2010/01/04

More Info


Penile stones, often referred to as smegma stones or penile calculi, are mineral deposits that can form under the foreskin in uncircumcised males. Understanding the causes, symptoms, and health implications of these stones is essential for maintaining urological health.


Causes of Penile Stones
The formation of penile stones is primarily associated with the accumulation of smegma, a substance composed of dead skin cells, oils, and other bodily secretions. When smegma is not regularly cleaned, it can harden and form stones. Several factors contribute to the development of these stones:
1. Poor Hygiene: Inadequate cleaning of the genital area can lead to the buildup of smegma, which can calcify over time.

2. Dehydration: Insufficient fluid intake can lead to concentrated urine, which may contribute to stone formation in various parts of the urinary tract.

3. Diet: High protein diets, particularly those rich in purines (found in red meats and certain fish), can increase uric acid levels, potentially leading to the formation of stones.

4. Medical Conditions: Conditions such as gout, which is characterized by high uric acid levels, can predispose individuals to stone formation.


Symptoms of Penile Stones
Symptoms associated with penile stones can vary based on their size and location. Common symptoms include:
- Swelling: The area under the foreskin may appear swollen or inflamed.

- Pain or Discomfort: There may be pain during erections or discomfort when the foreskin is retracted.

- Odor: A foul smell may emanate from the smegma or stones, particularly if they become infected.

- Difficulty Retracting the Foreskin: In cases of phimosis (tight foreskin), it may be painful or impossible to retract the foreskin, leading to further accumulation of smegma.


Health Implications
While penile stones themselves are not typically dangerous, they can lead to complications if left untreated. These may include:
- Infection: The presence of stones can create an environment conducive to bacterial growth, leading to infections.

- Inflammation: Chronic irritation from stones can cause inflammation of the glans (balanitis) or the foreskin (posthitis).

- Urinary Tract Issues: Although less common, there is a potential risk for urinary tract infections or complications if the stones migrate into the urinary system.


Treatment and Prevention
Treatment for penile stones generally involves proper hygiene practices. Regular cleaning of the area under the foreskin can prevent the buildup of smegma. If stones are present, they can often be removed manually. In some cases, if the stones are large or cause significant discomfort, a medical professional may need to intervene.

Preventive measures include:
- Regular Hygiene: Daily washing of the genital area, especially for uncircumcised males, is crucial.

- Hydration: Drinking plenty of water can help dilute urine and reduce the risk of stone formation.

- Dietary Adjustments: Reducing intake of high-purine foods and maintaining a balanced diet can help manage uric acid levels.


Connection to Other Health Issues
Regarding your concerns about kidney or bladder stones, it is possible to have stones in multiple areas of the urinary tract. However, the presence of penile stones does not necessarily indicate that you have stones in your kidneys or bladder. A healthcare provider can perform imaging studies, such as an ultrasound or CT scan, to assess for stones in these areas if there are symptoms suggestive of such conditions.


Conclusion
In summary, penile stones are primarily a result of poor hygiene and can be managed effectively with proper care. If you experience recurrent issues or have concerns about your urinary health, it is advisable to consult a healthcare professional for a thorough evaluation and tailored advice. Regular monitoring and good hygiene practices can significantly reduce the risk of stone formation and associated complications.

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