Bleeding after 6 days of delayed menstruation may be a miscarriage, or it may be a normal menstrual period, which should be examined by a doctor to confirm the diagnosis, and should not be judged on its own. Under normal circumstances, a woman’s menstrual cycle is between 21 and 28 days, and may be delayed, at most not more than 7 days, so the menstrual period is delayed for 6 days, vaginal bleeding occurs, it may be the presence of menstruation, the bleeding will usually be in about 3 to 7 days will be stopped on their own, there is no other obvious abnormalities manifested. Women who have sex during the ovulation period and do not use contraception to get pregnant, improper care after pregnancy or abnormal embryo development may result in miscarriage, which can lead to vaginal bleeding when menstruation is delayed for 6 days, and may be accompanied by pain in the lower abdomen. Bleeding when menstruation is delayed for 6 days and there are other obvious abnormal symptoms, you should seek medical examination to clarify whether there is any abnormality and timely treatment.