It is a normal phenomenon for a man to lose semen when he sleeps naked, and the number of times he loses semen can be reduced through diet, life, psychological aspects or circumcision. 1. Diet: Choose a light diet as much as possible, and avoid alcohol and spicy food. 2. Lifestyle: Reduce excessive sex or masturbation. Since the external genitalia are often rubbed by the quilt when sleeping naked, it will stimulate the external genitalia, so it will cause a reaction leading to seminal emission. To change the habit of sleeping naked and avoid wearing tight underwear. 3. Psychological aspects: learn relevant physiological knowledge, reduce curiosity, to avoid pornographic videos and other stimuli, maintain a good state of mind. 4. Disease: If you have a male disease such as phimosis, you should go to the hospital in time for circumcision treatment. If the spermatorrhea is too frequent, such as once a day to several times, and accompanied by fatigue, back pain, etc., is a pathological spermatorrhea. You should go to the hospital for treatment under the specific guidance of the doctor.