My friend got Chlamydia and got treated for it. Then about two months later it came back again. Do you think the medication didn't work or do you think he cheated on his girlfriend?

If you have never had any sexual encounters of any kind before is it possible to have an STI?

Hi I'm a 17 year old girl and I've been sexually active with my boyfriend for a few months. We always use condoms. But recently we have been trying this new thing where I sit on him, facing him (naked obviously) and his penis is straight up and we just kinda rub up and down for a little bit. He always pees before we do stuff cause I hear that lowers pre-cum risk and also I always watch his penis as we do this so I can make sure I see nothing coming out. Also, My vagina never touches the head, it just rubs the base. Is there a pregnancy risk here? I thought it sounded safe but I still wanted to know for sure. If it's not we'll stop!

Hi, I am 18-years old. Currently, I am experiencing some brown color discharge that is thick and sticky, some what that looks like blood. Before my discharge turned brown, I have white, sticky discharge then greenish one. They are odorless. The situation has been occurring for past 3 months. Most of the time is 2 weeks after my period. Is my discharge normal or abnormal? Should I seek for doctor's advice?