there are 27, Bacterial:
1. bacterial vaginosis
2. chancroid
3. chlamydia
4. donovanosis
5. gonorrhea
6. lymphogranuloma venereum
7. mycoplasma, genital
8. syphilis
9. treponematosis, endemic
Ectoparasitic:
10. lice, pubic
11. scabies
12. candidiasis, vulvovaginal
Protozoal:
13. amebiasis
14. cryptosporidium
15. giardiasis
16. trichomoniasis
Viral:
17. cytomegalovirus
18. Epstein Barr virus
19. hepatitis A
20. hepatitis B
21. hepatitis C
22. hepaptitis D
23. herpes simplex virus (HSV-1 and HSV-2)
24. human immunodeficiency virus (HIV)
25. human papillomavirus (HPV)
26. human T-cell lymphotropic virus (HTLV-1)
27. molluscum contagiosum