A sperm production cycle for the male partner is 3 months. Doing the precautions in the 3 months before conception will ensure the quality and quantity of sperm. When the quality and quantity of sperm are guaranteed, it will improve the chances of conception for the female partner and lay a good foundation for the good growth and development of the embryonic child. The specific precautions are: first, pay attention to the combination of physical work and rest, avoid overwork, and exercise properly; second, be calm and emotionally stable, avoid excessive fluctuations, and prevent irritability and depression; third, usually ensure a regular sex life 2-3 times a week; fourth, usually eat foods rich in protein, vitamins, minerals and trace elements, such as fruits, vegetables, eggs, mixed grains, small amounts of refined meat, Sea fish, shrimp, low-fat or nonfat milk. The company’s main goal is to provide a comprehensive range of products and services to the public.