The pinkish color of the leukorrhea indicates the presence of blood in the leukorrhea, and it is considered that the discomfort may be caused by bleeding from the vagina, cervix, or endometrium. If it is accompanied by foul odor, vulva itching and burning sensation in the pubic area, it is considered to be caused by gynecological inflammation, such as vaginitis, cervicitis, cervical cancer, pelvic inflammatory disease, endometritis, all these diseases will cause pink color of leucorrhea. If necessary, ultrasound examination of the uterine adnexa should be performed. If the leucorrhea is pink in the middle of menstruation, it may be due to ovulatory bleeding, where the follicle rupture leads to a transient withdrawal of estrogen, which in turn causes the endometrium to shed, resulting in a small amount of bleeding and a pink leucorrhea. It is important to pay attention to personal hygiene during bleeding, and if it is caused by gynecological inflammation, it should be treated as soon as possible.