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Risk Factors » Sex


Sex: Sexual behavior as a disease risk factor.
Introduction: There are numerous sexually transmitted diseases (STDs) that are directly spread by sexual behavior, especially by unprotected sex or multiple sexual partners. Sexual acts also involve transfer of fluids, so see also risks from saliva, kissing, and physical contact. Unsafe sexual behavior is also associated with other risk factors such as alcohol or drug abuse.

Condition count: 35; see list of conditions below.
Risk factor subtypes: oral sex (7), anal sex (8), vaginal sex (33), homosexuality (11)
Related risk factors: saliva (15), kissing (15), anal sex (8), oral sex (7), contraception (13), alcohol (36), drug abuse (21)
Risk factor classes: Contagion (97), Vaginal sex (33)

Risk factors: Risk Factor Center, risk factor list

Sex: Diseases list

The following list of medical conditions have 'Sex' or similar listed as a risk factor in our database:






  • Hepatitis ... sexual activity
  • Hepatitis A ... male homosexual behavior
  • Hepatitis B ... male homosexual behavior, sexual fluids, sexual behavior, bodily fluids
  • Hepatitis C ... multiple sex partners
  • Hepatitis D ... sex with Hepatitis D patient, Hepatitis B
  • Hepatitis E ... sex with HepE positive person
  • Hepatoma ... hepatitis B
  • HIV/AIDS ... anal sex, chlamydial infection, STDs, homosexual behavior, heterosexual sex, oral sex, syphilis, genital herpes, gonorrhea, unprotected sex, unprotected sex
  • HTLV ... multiple sex partners, syphilis, genital ulcers
  • HTLV-1 ... multiple sex partners, sexual exposure to HTLV-1 positive partner, syphilis, genital ulcers








More Risk Factor Topics

  • Intravenous drug users ... type of Drugs
  • iodine deficiency ... type of Diet
  • iron oxide ... type of Chemicals/toxins
  • Italian race ... type of Europeans
  • IUD contraception ... type of Contraceptives
  • IV drug users ... type of Drugs
  • jails ... type of Institutions
  • Japanese expatriates ... type of Race
  • jumping into water ... type of Water activities
  • kayaking ... type of Water activities
  • kerosene heaters ... type of Home

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