I have a dent in my leg, any ideas?

[whoingodsnameami]

I only noticed it the other day, am positive it's not always been there, it's on the outside of my calve, it's vertical and about 4inches long, its between the muscle and the bone, any ideas what it is? Could it be something to do with sitting with my legs cross?

Hmm, I was going to say socks, but vertical? You have flummoxed me.

Hmm, it's very weird, its quite noticable, I have'nt banged it and it does'nt hurt., It's like the muscle is coming away from the bone.