Why am i still bleeding days after an endometrial biopsy?

ToBleedOrNotToBleed: Some light spotting for a few days is not unusual, but if it persists for over a week, especially if increasing in amount or accompanied by pain, foul odor or fever then you should see your doctor ASAP. Now, at your age, having the biopsy is a bit unusual so maybe the reason your doctor got the biopsy is the reason for the prolonged bleed(e.g.friable tissue)but in any case, your doctor should know