Well, no. Condoms do not have any side-effects when used as per instructions. This is not to say that they have any side-effects but simply that they have a few rules that need to be followed for them to be completely effective.

•         Never use a ripped or bust condom
•         Always check the expiry date before using
•         Use one condom only once
•         Use a new condom for every act
•         Do not use a male and a female condom together
•         Always roll a condom over a fully erect penis
•         Use nitrile and polyurethane condoms, if you’re allergic to latex

Condoms are designed to protect you from STIs/STDs, and while they give you the pleasure you and your partner seek, following these rules will make the encounter all the more pleasurable!