What cause an over-sized calf muscle?

My friends calf muscles have become oversized to the point the her boots (zip up to below the knee) do not fit. I realise these muscles must be making up for something else, but not sure what?

Answers:

So my husband woke up yesterday near a knot surrounded by a bruise on his lower right belly. What is it?

genetics, check her mother's calfs

If I brake and pulp my pills into my food will they still work as good?

Shouldn't that be "calves"?

Why is the white part of the pack of my eyes slightly blue ish & yellow ?

muscles develop contained by response to demand placed on them. She must be doing some type of buzz that is cause muscle development. Maybe walking stairs or riding up on tiptoe over and over again? If she isn't acquirement weight adjectives over then something specific is the impose.

I have a problem next to my Cornea.?

too much exsersise.