One of the most common STIs in the U.S., gonorrhea, might sometimes not cause symptoms. But when it does, it typically presents with vaginal discharge, discharge from the penis, painful urination, painful sex, bleeding that’s not related to your periods, lower abdominal pain, or testicular swelling. When it comes to oral sex, gonorrhea can present as a sore and inflamed (red) throat, swollen lymph nodes, and fever.
Chlamydia in the throat will show up with symptoms such as a sore throat, pus in the tonsils, painful swallowing, mouth pain, mouth sores, and sores around the lip. However, it is less likely than chlamydia of the genitals,
In the case of syphilis (contracted via penetrative sex), the warning signs are often broken into primary, secondary, latent, and tertiary stages. What starts off as genital sores turns into an itchy rash, accompanied by wart-like mouth sores, hair loss, fever, muscle aches, swollen lymph nodes, fatigue, weight loss, and finally, even damage to your brain, nerves, eyes, heart, liver, bones, and joints. If you’re experiencing a sore throat (which may happen in the secondary stage), this might mean you’ve contracted syphilis via oral sex.
With HPV, a sore throat occurs with oral transmission. The same can be said for herpes esophagitis, which is herpes of the throat.
With HIV, you have to have an open wound in your mouth while performing oral sex to be able to contract the virus. However, HIV symptoms (from regular penetrative sex) include a sore throat as well, along with other flu-like signs of fever, muscle aches, chills, fatigue, swollen lymph nodes, and night sweats.