It is not recommended to eat Colla Corii Asini during menstruation. Although Colla Corii Asini is not pure Colla Corii Asini, it can also play the role of nourishing Yin and tonifying blood, moistening the lungs and replenishing Qi, especially for women with anemia is a good choice. Although the gelatin cake has a very good blood tonic, regulating effect, but also has the effect of activating blood, if you continue to take it during the menstrual period, it will lead to increased menstruation and prolonged periods, especially women who usually have more menstruation, if you continue to take the gelatin cake, it will lead to a significant increase in menstruation, and even lead to anemia, so women should not take the gelatin cake during the menstrual period, you can wait until after the end of the menstruation and then eat. It is not recommended to take blood-boosting, blood-stopping or blood-stasis-removing drugs or health products during menstruation to avoid menstrual disorders, nor is it advisable to eat excessively tonic health products. In addition to the menstrual period, women with uterine fibroids are also not suitable to eat Colla Corii Asini, which will stimulate the fibroids to continue to grow and aggravate the condition.