Hello, i received anal sex with condom but other person used a little spit as lube. am i at risk of receiving any stds ? if so how might they present? i am concerned as it was my first time trying anal?

Condoms are helpful in avoiding STD risk, but they do not prevent all transfer of germs. Periodic screening for STD's is a reasonable approach when engaging in sex with anyone, especially a new contact. Some can remain hidden without symptoms, so screening is the way you become aware of them.

several STDs can be transmitted by body fluids. Give this history to your MD and Pl get checked