Nocturnal emission of semen the next day is usually not recommended for semen tests, which require abstinence from sex for about three to seven days, and if nocturnal emission of semen occurs, it can affect the results of the test. Before the routine semen test, you should not have masturbation or sexual intercourse for three to seven days. During this period, if there is seminal emission, it will affect the results of the sperm quality test. When men experience spermatorrhea, they should abstain from sexual intercourse appropriately in their daily lives and develop good personal hygiene habits, wash and change their underwear frequently to keep their pubic area clean. If men experience frequent seminal emission with obvious discomfort, they should go to the urology department of the hospital in a timely manner to clarify the cause of the disease and follow the doctor’s instructions for treatment.