Originally posted by adamjai
She's just a regular orange tabby. She does have weird fur, it's not the normal smooth short fur, but it's long-ish on her body and the fur on her tail is very fluffy and long, so I'm wondering if the long fur is part of the problem.
She is a semi or long haired cat from your describtion.

It could be matted fur. Matts of fur pull on the skin to cause infection in the skin, looks nasty but treatable...i.e. shave cat, treat infection, keep well groomed in future.

Could it be something like that ?

Bottom line whatever is wrong with the cat she needs a vet visit.

Have you got a cat case or trap to catch her, or enlist help from a local cat charity and get her to the vets asap.