1.Sperm collection room sheets are disinfected and replaced on time, please don’t lift them up casually. Please do not turn off or mute the TV system after watching it, so as not to cause inconvenience to the next sperm collector. 2. Please abstain from sex for 2-7 days before semen examination. 3. Semen collection should preferably be collected in the hospital and put into the thermostat in time; if it is difficult to collect semen in the hospital, it should be sent to the hospital within 30 minutes after semen is discharged (get a semen collection cup from the male department beforehand). 4. Semen collection should preferably be done by masturbation, not by condom or interrupted sexual intercourse. 5.The ejaculation process should be thorough and the semen collection should be complete. 6.After putting it into the thermostat, remind the attending physician to come for examination after 30 minutes. 7.In please pay attention to indoor hygiene and put the used toilet paper into the garbage can.