Is it bad to change your iPhone 4 case a lot?

I change my like every two weeks. Like does it mess up your phone from taking it out and in? Does it also mess up the reception cus I been losing signals back & forth even when I don't have a case on

I don't think it matters. But the iPhone 4 does have an antenna issue if you hold it a certain way.

I do think it's possible I could mess up with the reception but I don't think the phone itself but you might get more dropped calls if you change it every 2 weeks

Yes I believe so, because of the metal parts on the cell phone can't be keep on touching it non stop.