Renal tuberculosis is contagious because it is also a disease caused by Mycobacterium tuberculosis infection. The transmission of renal tuberculosis includes contact with Mycobacterium tuberculosis in urine; sputum from patients with combined active tuberculosis, which can be transmitted through the air; and rarely through skin contact, diet, and excreta, so patients can carry Mycobacterium tuberculosis in their urine. If there are tubercle bacilli in the urine and they are touched by others, they may be infected. In addition, patients with poor nutritional status, poor hygiene habits, diabetes and other chronic diseases will increase the risk of developing renal TB. After diagnosis of renal tuberculosis, you should go to the urology department or infection department of the hospital in time and cooperate with the treatment under the doctor’s guidance.