ripping or being pulled apart would probably seem a more realistic term in some cases
not saying ripping will ever catch on, i sure it won't
but the term tearing, make it sound like a little paper cut.
i had 4th degree "tears" with dd
repair op and all that
and i find alot of peoplesay oh i had a bit of tearing too, when perhaps they don't realise what 4th degreee "tear" is