The imaging for men generally refers to urethrography, which does not require shaving of body hair. Male urethrography, which belongs to the special imaging examination, is a common method to check the urinary tract diseases, and is divided into the顺行尿道造影 and retrograde urethrography. Its purpose is to detect malformations, injuries, stones, tumors and other diseases of the urinary tract. Usually, the contrast agent is injected into the bloodstream or through a cystostomy, and the patient is allowed to urinate on his/her own, and the film is taken during the process of urination. Retrograde urethrography is performed by pushing the contrast agent through the urethra and into the bladder through the urethra. The patient does not need to shave during the procedure. If the patient is not feeling well, he or she should consult the doctor for examination and early treatment.