HomeAnswersDermatologypenile disordersCan the disinfectant used during urethrogram cause a white patch on the penis?

A part of my glans penis has become white after contact with a disinfectant. Kindly advice.

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The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Medically reviewed by

Dr. Preetha. J

Published At October 14, 2020
Reviewed AtJanuary 16, 2024

Patient's Query

Hi doctor,

Following a test, my penis came in contact with a disinfectant, and I notice that part of my glans penis has become white. I did a urethrogram. Kindly advise.

Hi,

Welcome to icliniq.com.

I went through the photo you have sent (attachment removed to protect patient identity). I can see a raw area with a whitish mucous membrane around it. I hope it is not burning or having any pain or itching. As I can see, you went through a procedure called the urethrogram. The most common reason for this is that you are allergic to the dye or disinfectant used in the procedure. The second probability is that it has been damaged during the process, which can occur during instrumentation. I hope it helps.

Differential diagnosis

The differential diagnosis is drug rash, or trauma.

Probable diagnosis

The probable diagnosis is dye allergy, or instrumentation?

Treatment plan

Take tablet Loratadine once daily for five days. Use Mometasone and Fusidic acid cream twice daily for five days. Take tablet Azithromycin 500 mg once daily before meal for three days.

Preventive measures

Do not wash with harsh soaps, and try to use mild soaps like Pears or Dove. In future during such procedure tell you doctor about this history.

Regarding follow up

Have a follow-up after five days if needed.

Patient's Query

Hi doctor,

Thank you so much for your reply. It is not itching or burning. I did the test a few days back. I think it is a reaction to the disinfectant used after the urethrogram since I pressed that specific area with a tissue paper to stop bleeding. I have not had any sexual encounters during the past three months. I have a Fusidic acid and Betamethasone cream readily available. Can I use the same?

Hello,

Welcome back to icliniq.com.

Do not worry, follow the treatment, and no need for Loratadine as you have no itch. Rest do as advised, and it will heal. Tell your doctor next time if needed to use a similar chemical or dye.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Subhash Kashyap
Dr. Subhash Kashyap

Dermatology

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