Women can eat a small amount of clean, hygienic crayfish during menstruation, crayfish is rich in calcium, magnesium, rich protein, etc., after appropriate consumption can play a complementary role in nutrition. If women eat too much crayfish during menstruation or crayfish is not fresh and cooked with spicy and stimulating condiments, it can easily lead to gastrointestinal discomfort or increased menstrual flow. Women in the menstrual period in the diet should pay attention to eat more warm, easy to digest food, such as pork ribs, carp soup is possible. At the same time to eat more fresh vegetables, fruits, to prevent constipation, try to avoid not fresh, spicy food and other unfavorable factors affect the menstruation, thus affecting the health of women.