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Common STI Symptoms

The most common symptom of an STI is no symptom at all. People who have STIs and do not have symptoms can still pass STIs to sex partners.

Other common symptoms include:

  • Discharge from the vagina
  • Bleeding between periods
  • Burning or pain during urination or bowel movements (peeing or pooping)
  • A need to urinate (pee) more often
  • Pain during sex
  • Itching in the affected area
  • Discharge - watery, white or yellowish/greenish - from the penis or vagina
  • Swollen or tender testicles
  • Sores that can be painful or painless (like a syphilis sore) on the mouth, vagina, vulva (outside parts of the vagina,) penis, anus, finger or butt
  • Bumps that can be itchy 
  • Muscle aches
  • Headache
  • Fever
  • Swollen lymph nodes

Types of STIs and their specific symptoms, treatment and prevention