Hello, can ureaplasma and mycoplasma live in our mouth with no symptoms? lets say i had oral sex and i had these infections in my mouth could i pass them onto my partner first and then to myself after vaginal intercourse? can u get them from kissing?

First, Ureaplasma and most mycoplasmas (except M. genitalium) are entirely normal in the genital tract; if present, they do not cause symptoms and do not need treatment. They are not known to infect the mouth or throat: there is little or no risk even after performing oral sex on someone with these bacteria in the genital area. For sure they are not transmitted by kissing.