Men who occasionally pass 50 ml of urine at a time, and are not accompanied by frequent urination, urinary urgency, urinary pain and other uncomfortable symptoms, is usually normal. If there is frequent discharge of 50ml of urine at a time, and accompanied by other symptoms of urinary discomfort, usually is not normal. 1. abnormal: a normal adult urinary output of about 200ml, generally need to urinate once every 2 to 3 hours, if each time the amount of urine is less than 50ml, increased frequency of urination, combined with frequent urination, urinary urgency, urinary pain and other symptoms, to consider the possible existence of prostatitis, prostate hyperplasia, bladder stones, neurogenic bladder and other diseases, need to be further diagnosis and treatment. 2. Normal: Due to occasional tension and other reasons, there can be a situation where 50ml of urine is discharged at one time, and after the tension is relieved, the abnormal urinary phenomenon will also disappear. If men frequently discharge 50ml of urine at a time, or accompanied by frequent urination, urinary urgency, urinary pain and other uncomfortable symptoms, it is recommended to consult a doctor in a timely manner.