It is not normal to have a period for two days. Menstruation is the cyclical shedding of the endometrium along with the cyclical changes of the ovaries as well as bleeding. Normal menstruation is cyclical and generally women have a menstrual cycle of 21-35 days, with an average of 28 days, and the duration of each period is usually 3-7 days. Therefore, it is not normal to have a period for two days, which is a sign of menorrhagia and menstrual disorders. There are many factors that cause menstrual disorders, mainly the following: 1. mental and psychological factors, such as excessive mental tension or anxiety, psychological stress, and frequent late nights can lead to menstrual disorders and low menstrual volume. 2. cold or cold food causes menstrual disorders or amenorrhea. 3. excessive dieting leads to insufficient energy intake, resulting in a large amount of fat and protein being consumed in the body, and estrogen synthesis is impaired, resulting in menstrual disorders. 4. Women who drink too much alcohol and smoke are also prone to menstrual disorders.