Sexually Transmitted Infections
Also known as: STIs, STDs, Sexually transmitted diseases, Venereal diseases
Sexually transmitted infections are infections spread primarily through sexual contact including vaginal, anal, and oral sex. Common STIs include chlamydia, gonorrhea, syphilis, HIV, herpes, and HPV. Many STIs are curable with antibiotics, while others can be managed with antiviral medications, and prevention through safe sex practices is essential.
Symptoms
Causes
- Bacterial infections such as chlamydia, gonorrhea, and syphilis
- Viral infections such as HIV, herpes, HPV, and hepatitis B
- Parasitic infections such as trichomoniasis and pubic lice
- Transmission through unprotected sexual contact
Risk Factors
- Unprotected sexual intercourse
- Multiple sexual partners
- History of previous STIs
- Young age between 15 and 24 years
- Substance use impairing judgment
- Inconsistent condom use
Diagnosis
- Urine tests for chlamydia and gonorrhea
- Blood tests for HIV, syphilis, and hepatitis
- Swab tests of genital sores or discharge
- Pap smear and HPV testing
- Physical examination of symptoms
Treatment
- Antibiotics for bacterial STIs such as chlamydia, gonorrhea, and syphilis
- Antiviral medications to manage herpes and HIV
- Antiparasitic medications for trichomoniasis
- HPV vaccine for prevention of HPV-related infections
- Partner notification and treatment to prevent reinfection
Prevention
- Consistent and correct use of condoms
- Regular STI screening for sexually active individuals
- HPV and hepatitis B vaccination
- Limiting the number of sexual partners
- Open communication with partners about sexual health
When to See a Doctor
- Any unusual genital symptoms such as sores, discharge, or pain
- After unprotected sex with a new or untested partner
- If a sexual partner has been diagnosed with an STI
- For routine STI screening as part of preventive care
Frequently Asked Questions
Related Conditions
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