Frequent Urination and Dark Skin Around the Urethra: What to Know - Urology

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Frequent urination and black discoloration of the urethral opening?


Hello Dr.
Du, it's me again.
My old patient, Er Mao, has recently experienced an increase in urination frequency, possibly due to the colder weather.
I visited the doctor at the beginning of the month, but blood and urine tests did not reveal any specific issues.
Last night, after using the restroom, I noticed a tingling sensation down there, so I used a mirror to take a look.
I found a spot about the size of a soybean that was either black or purple in color, but I'm not sure if it was on the vagina or the urethra.
I went to see a gynecologist, and she said it was due to a lack of female hormones.
The urine test was normal as well.
I just wanted to consult Dr.
Du further; this shouldn't be a cause for too much concern, right? Thank you.

Er Mao, 60~69 year old female. Ask Date: 2023/11/29

Dr. Du Shixi reply Urology


Hello: Don't worry, wishing you good health.

Reply Date: 2023/11/29

More Info


Frequent urination and the appearance of dark skin around the urethra can be concerning symptoms, and it's understandable that you are seeking further clarification. Based on your description, it seems like you have already consulted with a gynecologist who suggested that the discoloration may be related to a lack of female hormones. However, let's delve deeper into the potential causes and considerations regarding your symptoms.

Frequent urination, also known as polyuria, can be caused by various factors, including urinary tract infections (UTIs), diabetes mellitus, overactive bladder, or even certain medications. Since your blood and urine tests did not reveal any significant abnormalities, it may be beneficial to consider other lifestyle factors or underlying conditions that could contribute to this symptom. For instance, increased fluid intake, caffeine consumption, or stress can lead to more frequent urination.
The dark or purplish discoloration around the urethra could be attributed to several factors. One possibility is hyperpigmentation, which can occur due to hormonal changes, friction, or irritation in the area. Hormonal imbalances, particularly in women, can lead to changes in skin pigmentation. Conditions such as lichen sclerosus or lichen planus, which are inflammatory skin disorders, can also cause changes in skin color and texture around the genital area.
It's important to monitor the area for any changes, such as increased size, pain, or other symptoms like itching or discharge, which could indicate an infection or other dermatological condition. If the discoloration persists or worsens, or if you develop additional symptoms, it would be prudent to seek further evaluation from a dermatologist or a urologist. They can provide a more comprehensive examination and possibly conduct a biopsy if necessary to rule out any serious conditions.

In terms of treatment, if the discoloration is indeed related to hormonal changes, your healthcare provider may discuss options for hormone replacement therapy or other treatments to address the underlying hormonal imbalance. If the frequent urination is linked to an overactive bladder or another condition, there are various management strategies available, including lifestyle modifications, bladder training exercises, and medications.

In summary, while the initial assessment by your gynecologist is a good starting point, ongoing observation and communication with your healthcare providers are essential. If you have any concerns or if your symptoms change, do not hesitate to seek further medical advice. It's crucial to prioritize your health and well-being, and being proactive about your symptoms is an important part of that process.

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