Having 2 periods in a month may cause endocrine disorders, anemia and other hazards. During menstruation, the hormonal changes in the body are regular. Usually women have 1 period in a month. Such frequent menstruation may lead to frequent hormonal changes in the body and endocrine disorders. In addition, during menstruation, there will be a certain amount of blood loss, so 2 periods a month is likely to cause anemia in women. Nausea, vomiting, fatigue, indigestion and other uncomfortable symptoms. Specifically need to go to the hospital to do ultrasound, blood test hormone six and other tests, such as uterine fibroids, ovarian cysts and other causes of this phenomenon, you need to cooperate with timely treatment.