Blood on the ninth day of menstruation may be caused by endocrine disorders, uterine fibroids, vaginitis and other reasons.
1. Endocrine disorders: it may be due to hormone secretion abnormality caused by age, environment, etc. When estrogen secretion level is too low, it will cause the endometrium to shed continuously, which will lead to the phenomenon of blood on the ninth day of menstruation.
2. Uterine fibroids: due to the position of uterine fibroids, it is easy to press the uterine veins and endometrium, resulting in venous vascular plexus congestion and dilation, which is easy to rupture and bleed, and thus the phenomenon of blood on the ninth day of menstruation can occur.
3. Vaginitis: it may be caused by infection, decrease of estrogen level and other reasons. When vaginitis exists after menstruation, due to the stimulation of inflammation, bleeding can occur, which can occur on the ninth day of menstruation and blood.
It is recommended that there is still blood on the ninth day of menstruation may also be other reasons, it is recommended that the patient go to the hospital, follow the doctor’s instructions for treatment, to avoid delaying the condition.