This resource is for general information only and is not medical advice. Talk to a healthcare provider about your individual needs.
Sexually transmitted infections (STIs) are common and learning about them doesn’t have to be scary or overwhelming. STIs can be passed through sex or close physical contact. Anyone who is sexually active can get one. This applies to all, regardless of identity, partners, and relationship styles.
STIs are caused by bacteria, viruses, or other parasites. Some treatments can cure certain STIs, while others stay in the body long-term but are manageable with care. Many STIs do not show clear symptoms. So, awareness and regular testing are important.
Some of the most common STIs include chlamydia, gonorrhea, syphilis, genital herpes, HPV, and hepatitis A, B, and C.
Chlamydia
Chlamydia is a bacterial infection that often shows no symptoms. When symptoms do appear, according to the CDC, they may include unusual discharges or discomfort when peeing. Chamydia can be cured with treatment when taken as prescribed by a doctor. (Learn more at CDC)
Gonorrhea
Gonorrhea is a bacterial infection. It can affect the throat, rectum, or genitals. Some people may have no symptoms. Others might feel burning when peeing. They can also notice unusual discharges or rectal symptoms like itching, soreness, bleeding, or pain during bowel movements. Gonorrhea can be cured with treatment. (Learn more at CDC)
Syphilis
Syphilis is a bacterial infection that can be passed through sex and develops in stages. Early symptoms may include painless sores or rashes. Without treatment, later stages can cause serious complications, affecting the brain, nerves, and eyes. The CDC and WHO note that early syphilis can be cured with treatment. For information on stages and treatment, explore this link.
Genital Herpes
Genital Herpes is a viral infection. People can get it from vaginal, anal, or oral sex with someone who has the virus. The infection can lead to sores around the mouth or genitals. It may also cause pain when peeing, discharge from the penis or vagina, and other symptoms. Many people never notice these symptoms. There’s no cure for herpes, but treatment can help manage outbreaks and reduce symptoms. (Learn more at CDC)
HPV (Human Papillomavirus)
HPV is one of the most common STIs worldwide. Many HPV infections do not cause any symptoms and clear on their own over time. Some strains can cause genital warts, which may appear on the penis, scrotum, or around the anus. They usually do not cause pain, but some people may notice itching or tenderness. There’s no cure for HPV, but treatments are available for genital warts. (Learn more at Mayo Clinic)
Hepatitis A
Hepatitis A is a viral infection that affects the liver. It spreads through contaminated food or water. It can also spread through oral-anal sex (rimming), especially if fecal matter is involved. A vaccine is available that can protect against hepatitis A. (Learn more at Mayo Clinic)
Hepatitis B
Hepatitis B is a viral infection. It can be passed through sexual contact, sharing needles, or from a pregnant person to their newborn. Hepatitis B symptoms may include: stomach pain, dark urine, fever, joint pain, and vomiting. Current Hep B treatment is not a cure, but it does help manage symptoms. There’s a Hepatitis B vaccine that helps prevent transmission. (Learn more at Mayo Clinic)
Hepatitis C
Hepatitis C can spread through sex, but this is rare. It is more commonly transmitted through blood, like sharing needles or injection equipment. It causes liver inflammation and leads to serious liver damage. There are treatments that can cure hepatitis C. (Learn more at Mayo Clinic)
STI Prevention
There are many ways to reduce the risk of STIs. You can use condoms or dental dams. Also, you can get vaccinated for infections like HPV and Hep A and B. Test regularly, and have open conversations with partners. Taking DoxyPEP within 72 hours after sex can lower the risk of bacterial infections like Chlamydia, gonorrhea, and syphilis.
STI Testing
The CDC recommends that sexually active gay, bisexual, and other men who have sex with men (MSM) get tested for HIV, syphilis, chlamydia, and gonorrhea at least once a year. More frequent testing, such as every 3 to 6 months, may be recommended for people with higher risk factors, depending on sexual activity and access to care.
If you’re unsure where to start, local NGOs or community groups often know what services are available in your area.
For more information, explore Building Healthy Online Communities (BHOC) complete guide to STIs.
Disclaimer
This content is provided by Grindr for general educational and informational purposes only. It is not intended as, and should not be understood as, medical, legal, or professional advice. Grindr is not a healthcare provider and does not provide medical recommendations. Treatment and healthcare decisions should be made in consultation with qualified healthcare providers based on individual circumstances. Medical guidelines and research findings referenced in this content are subject to change as new evidence emerges. For support services and resources, explore the Looking for LGBTQ+ Community Assistance? page. For information about HIV testing sites in your region or country, visit the HIV Testing Services page. Last updated: 2026.