I heard they can move from your genitals to your stomach/gut then your mouth??? why do they move? and this is on the std list: Pelvic Inflammatory Disease.
some stuff does move up specially in females some infections like bv can start in the vagina and then move to the cervix and then to the womb and to the ovaries it causes inflammation hence why they call it pelvic inflammatory disease men can also get it its mainly caused by chlamydia and gonnorhea it can cause change in bowel movements but any change in bowel movements should be reported to a doctor as many other things can cause it aswel