Get tested; many STDs have no symptoms
Watch for unusual discharge from the penis, vagina, or anus
Watch for burning or pain when urinating
Watch for sores, blisters, bumps, or warts on the genitals, mouth, or anus
Watch for itching, redness, or irritation in the genital area
Watch for pain during sex
Watch for bleeding between periods or after sex
Watch for pelvic pain or lower abdominal pain
Watch for testicular pain or swelling
Watch for rash, especially on the palms or soles
Watch for fever, swollen lymph nodes, or flu-like symptoms after sexual contact
Get checked if a partner has tested positive for an STD
Get checked if you had unprotected sex
Get checked if you shared needles
Get checked if you have a new or multiple sexual partners
Get checked if you have oral, vaginal, or anal sex without protection
See a healthcare provider for STI testing to know for sure