1. CV (bacterial lysis vaginosis) Bacterial lysis vaginosis is a vaginosis caused by the lysis and rupture of vaginal squamous epithelial cells due to the overgrowth of lactobacilli, the normal dominant flora in the vagina. Its etiology and pathogenesis are unknown. The vaginal pH is between 3.5 and 4.5. Main symptoms: CV patients have symptoms similar to those of mycosis fungoides, most commonly itching of the vulva, accompanied by burning pain in the vulva, difficulty urinating and painful intercourse, and increased leucorrhea. The onset of symptoms is distinctly cyclical, i.e. it worsens during the luteal phase of menstruation until after the start of menstruation, when the symptoms are relieved due to the flushing of menstrual blood that raises the vaginal pH. Treatment: CV treatment aims to reduce the overgrowth of vaginal lactobacilli. Sodium bicarbonate sitz baths can relieve the patient’s symptoms by raising the vaginal pH and relieving vulvar itching due to acidic irritation. It is recommended to add one teaspoon of sodium bicarbonate to one pound of warm water and sit in the bath once or twice a week as needed. 2. TV (Trichomonas vaginalis) Trichomonas vaginalis is an inflammatory disease of the lower genital tract caused by Trichomonas vaginalis infection. It is associated with Chlamydia trachomatis infection, Neisseria gonorrhoeae infection, pelvic inflammatory disease, cervical intraepithelial neoplasia, HIV infection, premature birth of pregnant women and premature rupture of fetal membranes. Main symptoms: increased vaginal discharge, vulvar itching, burning sensation, some may have urinary frequency symptoms, a few even asymptomatic. Vaginal discharge appears foamy and yellowish green. Treatment: It is recommended that sexual partners be treated together; patients are often accompanied by trichomonas infection of the urethra, paraurethral glands and vestibular glands, so systemic treatment is recommended, and local treatment alone is not effective. Nitroimidazoles are the only drugs known to be effective in the treatment of trichomoniasis infections. The recommended regimen is: metronidazole 2g or tinidazole 2g, given as a single dose. The alternative regimen is metronidazole 500 mg orally twice daily for 7 d. Because of the high rate of reinfection in patients with TV (17% reinfection within 3 months in one study), it is recommended that all sexually active women be reviewed within 3 months of initial treatment, regardless of whether their partner is on treatment.