it's possible. what do you mean by "not to have a normal period"? An abnormality in the menstrual cycle or the amount of bleeding? In patient with anemia，the color of the menstrual blood is pink or light red, the menstrual blood is very thin or the amount of menstruation is reduced, and the menstrual period is very short. The situation of late menstruation is very serious and often drags on for more than 40 days. On the contrary, massive bleeding in the period can lead to anemia.