These things are not recommended: 1. Surgery and blood donation During menstruation, women’s blood clotting function becomes poor, and some studies have shown that surgery during menstruation can increase bleeding. By the same token, you should not perform various invasive medical operations that cause bleeding, such as tooth extraction, gastroscopy and colonoscopy during your period. And, of course, blood donation. Ear piercing is also not recommended during menstruation. 2. Bicycling There are some cross-class actions that need to be avoided during menstruation, such as riding a bicycle for a long time. The uterus and vulva are congested and fragile during menstruation, so cycling may cause some damage, so extra care is needed. 3, sex There is no research that clearly shows that sex during menstruation can lead to inflammation, endometriosis and infertility. But the reason it is not recommended is actually quite simple – hygiene issues. Of course, if your girlfriend’s desired form of comfort is to have sex, and you don’t mind, then ignore this. Note that it is not 100% impossible to get pregnant during your period and remember to use good birth control. The following things can be done: 1. Wash your hair It is perfectly fine to shower and wash your hair during your period. Moreover, menstruation is actually in a more infectious state, so personal cleanliness is important. Even if you can’t do a shower every day, you should at least scrub your vulva with clean, warm water every day before bed during your period. A friendly reminder: just rinse your vulva with water, don’t use any lotion, and don’t douche your vagina. 2, eat ice Menstrual diet, is never the same from person to person. Some people have pain and sweat with a mouthful of cold water, and some people are perfectly fine eating two ice creams in the middle of winter. If you eat these will be uncomfortable, do not eat; if there is no reaction, want to eat how to eat it. 3, running This also varies from person to person. Some girls just do not have any symptoms during their periods, and as usual, they are alive and well, so there is no need to suspend their exercise program because of menstruation. But if you are really in pain and can’t get out of bed, taking a step is like turning on the tap, then don’t push yourself and stay at home. In short, eat what you like and do what makes you feel comfortable.