Right now there are service
dogs provided for people suffering from autism, seizures,
diabetes, blindness, deafness, allergies, asthma, depression, and the newest ones of all: endometriosis. I'm sure we'll see even more types of dogs as time goes and people are more aware of what service dogs can do. Maybe we'll even start to see even more service cats? I've heard of them, although they are more rare that dogs.