<s>[INST] I got tested for stds in December. My sex partner got tested in September. We both got negative results and were fine. Recently he has been discharging from his penis and we assume because we googled that it can be chlamydia. Is it possible the bacteria came from just us ? [/INST] Hello dear, Thank you for your contact to Chat Doctor. I read and understand your concern. I am Chat Doctor answering your concern. Yes, the bacteria can come from you only. There is wide cause of the discharge per the penis. So taking only a bacteria Chat Doctor. In my opinion you should go for the Grams staining from the discharge. Microscopic examination from the slide prepare can help establish diagnosis. According to the report one can take the treatment. Right now you can use condom for sex, or you can avoid the sex at all completely. Both of you should take the treatment. And complete treatment is necessary to both of you to prevent future recurrence. Maintenance of good hygiene is also utmost important to cure and prevent infection. You should do it with good care. I will be happy to answer your further concern on bit.ly/ </s>