Hi doctor, I would like to ask about a possible STI exposure through indirect contact.

After a bowel movement, I clean my anal area using water from a public bidet spray, while also using my hand to assist with washing ( hand gentle rubbing of the anal area).

During this process, I touch the bidet spray handle with my hand, and then immediately use the same hand to directly touch and clean my anal area.

1. My concern is not about the water itself, but about hand contact: if there were contaminated bodily fluids (e.g., from an infected person) on the handle, could any STI (such as syphilis, HIV, HPV, chlamydia, or gonorrhea) be transmitted through this hand-to-anal contact?

2. Also, does it make any difference whether water is continuously running during contact versus no water (i.e., touching the bidet handle and then directly touching the anal area without water)?

3. Does this type of contact carry any risk or exposure? and would any testing be necessary?

Thank you.