My lower back pain, minimal menstrual flow, and dark red color are what reasons

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Doctor's answer:

Hello: Generally speaking, a small amount of menstrual flow is caused by low estrogen levels. Estrogen can stimulate the proliferation and thickening of the endometrium. The proliferated endometrium detaches and bleeds to form menstruation. Low estrogen levels in the body can lead to insufficient thickening of the endometrium. Hello: Generally speaking, a small amount of menstrual flow is caused by low estrogen levels. Estrogen can stimulate the proliferation and thickening of the endometrium. The proliferated endometrium detaches and bleeds to form menstruation. Low estrogen levels in the body can lead to insufficient thickening of the endometrium.