Old blood: Given your age i suspect your Progesterone level is starting to drop meaning you are more likely to have longer periods. The lining of the uterus is less supported when the Progesterone is lower. So uou bleed longer. Blood that's been in the uterus for longer gets dark.
Answered 11/17/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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