They are most likely fine. Just keep an eye on them. A pic would help determine how dimpled it is and if it should be of further concern...
^^Agree. A pic or 2 would help us out alot in order to help you out
0.1 Old Lady (Chelsea)
1.0 Pure Bred Alaskan Malamute Puppy (Cody)
1.1 Crested Geckos (PLENTY more to come)
0.1 Arg Black & White Tegu
To Many Dam BP's and Breeder Rats