For many middle-aged and elderly men, kidney cancer is one of the malignant tumors that need to be vigilant.

Some people say that kidney cancer is characterized by "silent", and many patients do not show symptoms until late.

How to detect early kidney cancer?

How to keep your kidneys healthy?

The "Medical Line Observation" column of Chinanews.com invited Zhang Qian, chief physician of the Department of Urology of Peking University First Hospital and president of Peking University Binhai Hospital, to interpret the topic of kidney cancer prevention and treatment.

Responsible editor: [Ji Xiang]