Any ideas as to what this is?

It's looks kinds like hair, but it's not. It's just these tiny tin brown dots on the inside of my thigh by knee. It cuts off right of the my shorts line. It's only on one leg. I've been having other health problems pop up recently. idk what, though, idk of it, another symptom, or if it is the start of some chub rub. I've chafed plenty before, but idk. What are yall thinking?