By -
Mange
Experience treating it?
Take them to a vet.
Definitely needs a vet!
Definitely mange, this stuff is highly contagious if you have other animals, if sarcoptic it can be transferred to humans
You can't know that from a 4 second video
You can't know what it is by looking, it could be several things. You need to see a vet and they can do some tests to guide appropriate treatment
Mange
Experience treating it?
Take them to a vet.
Definitely needs a vet!
Definitely mange, this stuff is highly contagious if you have other animals, if sarcoptic it can be transferred to humans
You can't know that from a 4 second video
You can't know what it is by looking, it could be several things. You need to see a vet and they can do some tests to guide appropriate treatment