The causes of a small amount of bright red blood coming from the vagina during non-menstrual periods are as follows: First of all, one should be alert to the possibility of pregnancy. This is especially true for women of childbearing age who have had unprotected sex, to prevent the possibility of miscarriage and ectopic pregnancy hemorrhage. Secondly, have you recently taken oral contraceptives or other sex hormone-containing medications to prevent withdrawal bleeding from the lining due to hormonal changes in the body. Finally, due to reproductive system diseases, the more common is chronic cervicitis leading to severe cervical erosion or reproductive system tumors leading to irregular vaginal bleeding. You need to pay attention to observe whether there are abdominal pain, dizziness, fatigue and other uncomfortable symptoms, pay attention to observe whether there is continued bleeding, bleeding volume has increased. If there is an increase in bleeding and abdominal pain, it is necessary to go to the hospital in time and pay attention to rest.