nope. As long as it's not too old (the materials deteriorate over time) and it's never been crashed it should be just fine. I have a nutcase helmet that I ride in. Nutcase helmets are more aimed at skateboarding, but I don't care- it's pretty, fun, and it protects my noggin.
In the summer I wear a mtn bike vented helmet because the Nutcase gets hot.

http://www.nutcasehelmets.com/en/col.../watermelon_11