If bleeding occurs in early pregnancy, progesterone should be checked in a timely manner. Low progesterone levels can show signs of miscarriage and bleeding, during which time you should take care to rest in bed and refrain from strenuous exercise. If a low progesterone level is detected, progesterone or dydrogesterone should be supplemented in a timely manner, which has a fetus-preserving effect and can prevent the occurrence of miscarriage. If bleeding occurs in the middle and late stages of pregnancy, ultrasound should be performed in time to rule out the possibility of miscarriage. If miscarriage is confirmed, symptomatic treatment measures should be taken according to the pregnancy week.