Sexually transmitted diseases are diseases that are commonly transmitted between partners through some form of sexual activity, which can include sexual intercourse, oral sex, or anal sex.
Types of sexually transmitted diseases and their causative organisms:
Bacterial?
Chancroid? - [Haemophilus ducreyi]?
Chlamydia - [Chlamydia trachomatis]?
Donovanosis? ([Granuloma inguinale]?) - [Calymmatobacterium granulomatis]?
Gonorrhoea? - [Neisseria gonorrhoeae]?
[Lymphogranuloma venereum]? (LGV?) -- [Chlamydia trachomatis]? serotypes L1, L2, L3
[non-gonococcal urethritis]? (NGU?) -- [Ureaplasma urealyticum]? and [Mycoplasma hominis]?
Syphilis - [Treponema pallidum]?
Viral?
[Hepatitis B]?
[Hepatitis C]?
[Hepatitis D]?
([Hepatitis A]? and [Hepatitis E]? are transmitted via the [faecal-oral route]?)
Herpes? - [Herpes simplex virus]? (HSV?)
[Human Immunodeficiency Virus]? (HIV)
[Molluscum contagiosum]?
Warts? - papillomavirus?
Amoebiasis? - [Entamoeba histolytica]?
Giardiasis? - [Giardia lamblia]?
Trichomoniasis? - [Trichomonas vaginalis]?
Candidiasis/Thrush? - [Candida albicans]? (not strictly an STD but commonly regarded as one)
Other (not actually STDs but often considered as STDs)
Lice? - [Phthirius pubis]?
Scabies - [Sarcoptes scabiei]?