The miscarriage of 2 crabs during pregnancy may be due to the fact that crab is a cold food, which may cause abdominal pain and diarrhea after consumption, and may easily induce uterine contractions, while if the embryo is not very firmly embedded and the embryo is in an unstable state of development in the uterine cavity, it may lead to miscarriage. In addition, the crab claws of crab have the effect of activating blood circulation and removing blood stasis, so if you eat crab during pregnancy will increase the risk of miscarriage. In addition, there are many factors that cause miscarriage, and multiple influencing factors may act simultaneously when eating crab to cause miscarriage, such as chromosomal abnormalities in the embryo, endocrine abnormalities in the pregnant woman, and cervical insufficiency. Therefore, special attention should be paid to the diet during pregnancy, especially cold food is not recommended, in addition to crab, barley, bitter gourd, etc. should also be consumed with caution. In addition, care should be taken during pregnancy to stay away from radiation and other undesirable environments, avoid exposure to toxic chemicals, and get more rest to reduce the risk of fetal developmental malformations. After miscarriage, nutrition should be supplemented by eating more food with protein, such as fish, lean meat and pork liver, which have blood tonic effect and can also supplement protein. Pay attention to rest, ensure sufficient sleep and reasonable exercise, prohibit sex within 2 weeks, and avoid violent mood swings. If there is residual uterine cavity after abortion, apply clearing surgery to remove it and avoid causing intrauterine infection.