There are many possible diseases with brown urine color. First, it is considered that the urine is concentrated because the body sweats too much or does not drink enough water, resulting in too little water in the body, thus causing the urine to be brown in color. When the body suffers from hemolytic jaundice or obstructive jaundice, the bilirubin in the urine rises, thus causing the urine to be brown in color. When patients take certain medications, such as rifampin and ethambutol, these medications can cause the urine color to change to brown. When patients suffer from infectious diseases such as prostatitis, urethritis and cystitis, the bacterial content in the urine increases and can lead to brown urine color. Chinese medicine believes that brown urine color is caused by excessive dampness and heat evil in the body, and the specific disease is gonorrhea. When the color of urine changes, patients should promptly go to the urology department of a regular hospital for urine routine analysis and blood tests and other tests to clarify the cause and diagnosis, and then actively treat the disease.