If there is pink discharge on the panties, it is definitely the bleeding in the genital tract that causes the pink discharge, only the amount of bleeding is very small. There are several causes of bleeding from the reproductive tract: first, inflammation of the vagina; second, local inflammation of the cervix, such as cervical polyps; third, inflammation of the endometrium; fourth, inflammation of the pelvis; fifth, endometriosis; sixth, pelvic tumors. All of the above may cause pink discharge from the vagina, so it is recommended to have a gynecological examination to find out whether there is any local breakage in the vulva, vagina or cervix, whether there are bleeding spots, and if necessary, to have routine white belt tests, cervical cancer screening, ultrasound, and gynecological double examination to initially understand the cause of bleeding before giving the appropriate treatment.