If the aborted piece of flesh had the features of a human such as the head, the arm or the legs, this is post delivery bleeding. But if it was only a piece of flesh without any features, this is a bleeding that doesn’t prevent you from praying or fasting.

I had an abortion of 11 weeks. Now its my 20th day after that and my bleeding has been stopped after 12th day. So am I pure now or I have to wait for Salah for more 40 days?

Menstruation and post-natal bleeding | March 7, 2014 4:47 am
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After performing ghusl , many women complain of seeing some discharge if not clearly blood, is the ghusl to be repeated in this case.And if the women fasts after ghusl and notices a minute quantity of discharge is the fast nullified or valid.
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What if a woman is unsure of the blood she sees,if its is menstural or something else (blood-vessel bleeding- not sure) ?