1. Physical condition examination Before pregnancy, women should undergo a comprehensive physical condition examination, including gynecological examination, blood routine, liver function, kidney function and other items. If there are any abnormalities, they should be treated or adjusted in time. This reduces the risk of problems during pregnancy. 2. Adjustment of lifestyle habits Before pregnancy, you need to pay attention to adjustments to lifestyle habits, such as quitting smoking and limiting alcohol, and avoiding overwork and stress. In addition, you must eat properly, take in enough nutrients, and avoid spicy and irritating foods. 3. Take folic acid leaves