It can happen because there are some Ectopic tissues which may be secreting oestrogen and progesterone. So the endometrial lining of uterus will respond.
However it is not clear that when both ovaries were being removed, why they didn't remove the uterus. After all, now uterus can only have diseases.
Please get your mother checked. She should have internal examination and colposcopy. If cervix of the uterus is diseased, she may bleed and the cause will be seen only by internal examination.
Answered2022-02-13 15:39:06
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