Why is the head of the penis itchy with red spots?

Patient's question:

What is the cause of itchy red spots on the head of the penis? 2010/03/22

Doctor's answer:

Hello, it is likely balanitis, possibly caused by phimosis or excessive masturbation. You can first try using potassium permanganate solution for washing to see if it improves. If it doesn't work, it is recommended to go to the hospital for examination and symptomatic treatment.
As everyone knows, penile tuberculosis can cause significant harm to patients, so it is important to seek treatment as soon as possible. In daily life, attention should be paid to dietary issues—avoid foods and maintain a balanced diet. Additionally, regular follow-up visits may be necessary when needed.