carcinoma of penis is one of the common malignant tumors of male reproductive system. In the past, it was quite common in my country, ranking first in male reproductive system tumors. The incidence rate has decreased significantly in recent years. Mostly occur in middle-aged people, with an average age of 30 years. The vast majority of those with penile cancer have foreskin that is too long. The incidence of penile cancer is very inconsistent due to factors such as country, region, ethnicity, religion, and hygiene habits. In general, the incidence rates in Europe and the United States are relatively low, while those in Asia, Africa, and Latin America are relatively high, while the incidence rates are very low in the Jewish and Muslim countries. What are the early symptoms of penile cancer?

　　Penile cancer early symptoms: penis head Or thickened foreskin epithelium, papules, ulcers, warts, or cauliflower-like plaques on the head of the penis, followed by erosion, hard and irregular edges, conscious tingling or burning pain, and purulent foul discharge. When there is phimosis or foreskin that cannot be turned up, you can touch it carefully through the foreskin, there is a lump or nodule, and there is local tenderness.
　　How to prevent penile cancer?
　　 1. Pay attention to personal hygiene and take a bath frequently.
　　 2. Circumcision is performed early for the circumcised elderly.
　　 3. Active prevention and treatment of penile cancer precursor diseases such as phimosis, glans foreskinitis, papilloma and giant condyloma acuminatum.
　　 4. If the penis is unwell, it should be checked and diagnosed early. Maintain local cleanliness and hygiene, disinfect regularly, and actively prevent infection.
　　 5. Timely treatment of phimosis and foreskin is too long, pay attention to local cleaning, and give proper treatment to precancerous lesions.