What are the reasons for a small menstrual flow? Three days, 20 years old

Patient's question:

No

Doctor's answer:

Generally speaking, a low amount of menstrual flow is usually caused by low estrogen levels. Estrogen stimulates the proliferation and thickening of the endometrium. The proliferated endometrium detaches and bleeds, forming menstruation. Low estrogen levels in the body can lead to insufficient endometrial thickening, resulting in less bleeding during menstruation. For your condition, it is recommended to undergo an endocrine examination to check whether the hormone levels in your body are normal.