1, don't tie your belt during your period, because it hurts a little every time you come to menstruation, and it's even worse to tie your waist. Menstruation is a phenomenon that women's blood or mucous membranes are regularly discharged from the endometrium through the vagina, which is regulated by the reproductive hormone system.

2. Menstruation in human women usually occurs at the earliest age of 12 to 15, with an average period of about 28 days and ends after menopause (generally 45-55 years old). When menstruation comes, menstrual blood will continue to flow out for about 2-7 days. China's waist-girding ci. Nowadays, it refers to the behavior of women to tighten their waist with a waist belt to keep it slim. Originated from the European court, it was imitated by women all over the world. Proper girding can support women's feminine beauty, but too tight girding is harmful to health.

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