Can sexually transmitted diseases spread through sharing a cigarette or an e-cigarette?

Yes, some sexually transmitted diseases can be spread through sharing a cigarette or an e-cigarette. For example, HPV (human papillomavirus) can be spread through contact with infected mucous membranes, and it's possible to get HPV from sharing a cigarette or an e-cigarette.

Other sexually transmitted diseases that can be spread through contact with infected mucous membranes include HIV, herpes, and chlamydia. So it's important to avoid sharing cigarettes or e-cigarettes with anyone who might have an STI.