a neighbor has a cat, that's mostly (don't laugh) outside, it's long haired,...

[outsideLittles]

...and has a patch of hair matted? the little(don't giggle) baby seems to need help. the patch is sort of hanging somewhat off. also told the cat has lumps under her fur , what's going on, ? need to know ,my cat stays inside, and very healthy,is her cat sick, is it contagious?