The precautions for men after ejaculation include not urinating immediately, paying attention to cleaning, and observing the state of semen. 1. can not immediately urinate: after ejaculation of sexual organs congestion has not subsided, can not immediately urinate, in order to avoid waiting for urine, urinary weakness, urination and other undesirable phenomena. 2. Pay attention to cleaning: men should wash their private parts in time after ejaculation, so as not to breed bacteria and increase the incidence of genitourinary diseases. 3. Pay attention to observe the state of semen: after ejaculation, a man should observe the color, smell, liquefaction of semen, etc. If there is an abnormal performance, you should consult a doctor for semen examination in a timely manner, so as not to affect the fertility. Normally, we should have a restrained sex life, avoid too frequent; at the same time, we should maintain a fixed sexual partner, avoid high-risk sex; if there are symptoms of physical discomfort after ejaculation, we should consult a doctor in a timely manner.