Because crabs contain a lot of high protein and are cold, pregnant women should pay attention to moderate consumption, especially try not to eat them in the early pregnancy, especially crab claws, because they have abortion effect. Other pregnant women who have high blood pressure, hyperlipidemia and allergic constitution are not suitable for eating crabs. During pregnancy, pregnant women should eat more digestible vegetables and fruits, and eat less spicy and greasy food, as long as they pay attention to a reasonable diet.