I think I have an extra shin bone?

Question

I have noticed for a long time ago that on my right shin where the normal tibia should be, it almost looks like it stops and another bone comes in from behind it at a different angle to continue down my leg. The "intersection" is about 5 inches above my ankle and has never bothered me, if anything my right shin is my strong one. I have never broken a bone and my other shin is not like that, it's weird. Is that common, or just a medical abnormality or what

Answer 1

its possible. the bone under my left ankle grew too big, so it appears taht i have two ankles on one foot.