Constipation during menstruation is often due to pelvic congestion and edema, resulting in poor rectal defecation and exhaustion. Since you can’t eat cold food during menstruation, try to eat less cold fruits, such as chilled watermelon, bananas and other cool fruits, and eat room temperature ones such as apples and kiwis. For more serious constipation, you can take a small amount of Bifidobacterium tetraureticum and Bacillus subtilis diphtheriae to help improve the constipation, avoid cold and flu, drink more warm water, and eat less spicy and stimulating food to help intestinal bowel movements and exhaustion to relieve constipation.