Coffee-colored stains during non-menstrual periods are considered to be caused by inflammation of the endometrium or pelvic inflammation. It may also be caused by cervical erosion and cervical polyps, which are usually more common. Normal leukorrhea is clear, odorless and thin. This kind of coffee-colored leukorrhea belongs to the abnormal phenomenon, appeared this kind of situation, should go to the hospital in time for examination, can do pelvic ultrasound gynecological internal examination. This examination is recommended within 3-7 days after the menstrual period is clean. If it is a case of cervical erosion, mild cervical erosion can be treated with vaginal medication. If it is a more severe form of celiac disease, laser or microwave treatment is needed. If it is a cervical polyp, it is recommended to remove it surgically and do a pathological examination, and if it is caused by inflammation, it needs anti-inflammatory treatment.