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A member asked:
What could cause 56 days in between period and then lighter period than normal for 9 days? back and forth between red and brown color.
A doctor has provided 1 answer
LH, FSH,E,P: Periodic renewal of the uterine lining (endometrium) is controlled by the four hormones noted above. The most common cause of changes in menstrual flow (brown is older blood and used up endometrium, red is freshly lost blood) is changes in Estrogen or Progesterone, and all four hormones participate in the timing of menses. Consider consulting with a practitioner who specializes in female cycle.
Answered 11/28/2017
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