Sperm donation should firstly be of suitable age, good health and pass the examination. 1. Suitable age: generally between 22 and 45 years old. 2. Physical health: no family infectious diseases, hereditary diseases, mental diseases, sexually transmitted diseases, exclusion of carriers of pathogens, no long-term exposure to chemical substances and radioactive harmful substances, and no other diseases of vital organs. 3. Qualified examination: you need to go to the regular hospital for the appropriate auxiliary examination, all the examination indexes are within the normal reference range, mainly to check whether the semen quality is normal. It is on the premise of normal quality of semen examination can be carried out. Specifically should go to the local formal medical institutions to consult.