Short periods of only three days are usually caused by irregular menstruation, hormonal disorders in the body, endocrine disorders and so on, and need to take Chinese medicine to regulate. Patients can go to the hospital to check the ovarian function, if it is caused by premature ovarian failure and other symptoms need timely treatment. Before and after menstruation, we should pay attention to body warmth, catching cold will also shorten the period, patients can usually eat more brown sugar, jujube and other food to replenish qi and blood, brown sugar and ginger tea also has the effect of driving away cold. For irregular menstruation, you can take Ai Fu Warm Palace Pill and Wu Ji Bai Feng Pill to regulate. You can also go to a Chinese medicine hospital for treatment, and the Chinese medicine doctor will give the patient with medicines to regulate menstruation, which has a good effect on the patient’s condition. Alternatively, the patient can take the oral compound short-acting contraceptive pill to regulate the menstrual cycle under the guidance of the doctor.