A few days after menstruation and coffee-colored discharge with taste indicates a small amount of vaginal bleeding, considering pelvic inflammatory disease, cervicitis, vaginitis, malignant tumors of the reproductive system and so on. 1. Pelvic inflammatory disease: Pelvic inflammatory disease is an inflammation of the female internal reproductive organs and the surrounding tissues, such as endometritis, salpingitis, etc., which may lead to localized congestion and edema, inflammatory exudate, and in severe cases there will be a coffee-colored secretion, and due to the presence of inflammatory infections, the general secretion may be accompanied by a peculiar smell. 2. Cervicitis: Cervicitis is an inflammation of the vaginal part of the cervix and the mucous membrane of the cervical canal, which is caused by pathogen infection of the cervix, leading to cervical congestion, edema, mucous membrane ectasia, due to the brittle mucous membrane of the cervical canal, which is easy to induce bleeding, and may be accompanied by a peculiar odor when combined with infection. 3. Vaginitis: the occurrence of vaginitis is related to infection, bacterial imbalance, hormone levels, etc. It is mainly manifested in the increase of vaginal secretions, color and smell changes, when the vaginal inflammation is more serious, the vagina will be congested and edematous, and some of them will be manifested in a small amount of bleeding. 4. Malignant tumors of reproductive system: when there are cervical cancer, endometrial cancer, fallopian tube cancer and other diseases, it may also lead to the above situation. A few days after menstruation, coffee-colored secretion with taste may have other reasons, it is recommended to be examined in hospital urgently, to clarify the cause of the disease and follow the doctor’s instructions for symptomatic treatment, and pay attention to personal hygiene in normal times.