In severe cases of trichomoniasis, infertility may occur because trichomoniasis is transmitted to the partner through sexual contact. Trichomonas vaginalis can swallow male sperm, and in patients with trichomoniasis, there is a large amount of leukorrhea, which can prevent the union of sperm and egg and cause infertility. If not treated in time, trichomoniasis can lead to endometritis, pelvic inflammatory disease, and adnexitis, which can also affect the ability of women to conceive. Trichomoniasis can cause severe itching of the vulva and vagina, which may worsen at night and lead to insomnia and poor sleep, and other neurological problems. Once trichomoniasis is diagnosed, the patient should be treated vaginally with metronidazole vaginal suppositories.