For young women with a weak constitution, the symptoms of small abdominal pain may occur before menstruation, which is normal if the symptoms are not severe. Substantial changes in estrogen will occur before the onset of menstruation, when changes in hormone levels will be more pronounced. For women with sensitive constitutions, pelvic congestion and bruising will begin to occur, resulting in abdominal pain. If the symptoms of abdominal pain before menstruation are not serious and last for a short time, they are physiological and do not require special treatment. When the pain occurs, you should maintain a regular life, reduce the intake of cold food and pay attention to keep warm, so as to successfully pass the sensitive period of small abdominal pain before menstruation.