Do Penile Herpes Blisters Ever Burst? Symptoms and Risks - Urology

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Can herpes blisters on the penis burst?


Hello, doctor.
I am currently in the second year of high school and have a problem with phimosis.
I noticed a small cluster of tiny blisters on my penis when I was in the first year of middle school.
After researching online, I found that they resemble herpes lesions caused by HSV infection.
However, since middle school, the blisters have never ruptured, and I have not experienced any discomfort (sometimes after masturbation, I feel a burning pain in my penis, but I'm not sure if it's related to these blisters).
Recently, I have noticed that the area of the blisters has increased, so I would like to ask the doctor what this situation might be.
Is it contagious?

Xiao Yu, 10~19 year old female. Ask Date: 2023/10/21

Dr. Chen Jiansheng reply Urology


Please seek medical attention.

Reply Date: 2023/10/21

More Info


Penile herpes blisters, typically caused by the herpes simplex virus (HSV), can indeed burst, leading to a range of symptoms and potential complications. However, the situation you describe—having small blisters that have not burst and are not causing discomfort—raises some important considerations.

Firstly, it's essential to understand that herpes simplex virus infections can manifest in various ways. The blisters you are observing may be typical of HSV, but they could also be due to other conditions, such as folliculitis, pearly penile papules, or even friction-related irritation, especially if they are not causing significant discomfort or have not burst over an extended period.

In general, HSV infections can present as clusters of small, painful blisters that eventually rupture, leading to ulcerations and crusting. These lesions are often accompanied by other symptoms, such as itching, burning, or pain, especially during urination or sexual activity. The fact that you have not experienced these symptoms may suggest that the blisters you have are not typical herpes lesions.

Regarding the risk of transmission, HSV is highly contagious, particularly when blisters are present. If the blisters are indeed caused by HSV, there is a risk of transmission through direct contact, even if they have not burst. This means that engaging in sexual activity could potentially spread the virus to a partner. It is crucial to avoid sexual contact during outbreaks or when symptoms are present.

Given that you mentioned the blisters have increased in size, it would be wise to consult a healthcare professional for a proper evaluation. A doctor can perform a physical examination and may recommend tests, such as a viral culture or PCR test, to confirm whether the blisters are indeed due to HSV or another condition.
In terms of treatment, if the blisters are confirmed to be herpes-related, antiviral medications such as acyclovir or valacyclovir may be prescribed to help manage outbreaks and reduce the risk of transmission. Additionally, if the blisters are causing discomfort or if there is a concern about their appearance, a healthcare provider can offer guidance on appropriate management strategies.

Lastly, it is important to address the burning sensation you experience after masturbation. This could be related to irritation from the blisters, friction, or even an underlying condition that warrants further investigation. Discussing this symptom with a healthcare provider is essential to ensure that any potential issues are addressed.

In summary, while penile herpes blisters can burst, the absence of significant symptoms in your case could indicate a different condition. It is crucial to seek medical advice for an accurate diagnosis and appropriate management. Taking these steps will help ensure your health and well-being while also addressing any concerns about transmission and treatment options.

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