What if my aunt's blood is black?

Under normal circumstances, the color of menstrual blood is dark red or bright red, generally does not clot. In special circumstances, if the menstrual volume is very large, or bleeding is relatively rapid, there may be a small amount of blood clots produced. Normal menstrual cycle, between 21~35 days, menstrual period between 2~7 days, as long as the menstrual period is in line with the above is normal menstruation. It is almost impossible for menstrual blood to be black. If it is black menstrual blood, it is necessary to pay attention to whether it shows cervical or endometrial lesions. It is necessary to go to the hospital for further examination to rule out cervical and endometrial conditions. If there is no abnormality after the examination, relevant observation and treatment can be carried out first; if the examination finds abnormal conditions, symptomatic treatment should be carried out under the guidance of a doctor.