###Human: What are the preventive measures in case of slippage or breakage of condoms? ###Assistant: Hi. An unsafe sex increases the chance of contracting STDs (sexually transmitted diseases) as well as HIV (human immunodeficiency virus). As you mentioned that the status of your partners are mostly not known, so this puts you in risk of contracting STD or HIV if you get involved in unsafe sexual practices with such partners. In case of slippage of condoms or breakage of condoms, puts you at risk, which cannot be neglected while having sexual intercourse. First and foremost important thing to do is, to stop the act and wash your genitals with mild soap under running water. Avoid applying any cream or lubricant that can cause irritation to genital skin. Besides this avoid promiscuous behavior. There is no need to take Truvada (Emtricitabine and Tenofovir Disoproxil Fumarate) until and unless you know the HIV status of the partner with whom you have had unprotected sex. Viral infections such as genital warts and herpes can be contracted by even skin to skin contact. For accidental genital contact, firstly get the STD profile done, and then if required start the treatment for the respective STD that is detected on testing. In your case you should use XL size condoms (extra large), which can be procured from a medical store. Having an unprotected sexual intercourse with a partner who is HIV+ then there is always a risk of contracting HIV, you cannot neglect it or can take chance of not contracting HIV by having sex only for once with such person. If you are not sure about vaccination and as you are involved in unhealthy sexual practices then you should get your hepatitis B done. For further clarification consult a sexologist online -->