I'm not sure...i know I'm not an expert on mice, but, mice are very cute and I'm pretty sure it's bad that the mouses' ear is bleeding.
mites
go to the vet and get the ear stiched.
The symptoms of ear bleeding would be blood coming from the ear or ears. Is the question more likely, "What are the causes of ear bleeding?"
Well, its probably not good.
Usually when a mouse ear gets crusty its because it has an ear infection or a tick (flea)
Take it to the vets
If blood is coming from the ear that means it an ear infection
its infected
Not likely, as Bell's Palsy merely affects the trigeminal and/or facial nerves of the face. Bleeding from the ear can be caused by numerous other things, such as concussions, ear infections, or injury. Consult an emergency physician with any ear bleeding as it has a high likelihood of being serious.
because it is ready to have a baby if it gets near a boy mouse
snake
Well if your ear does bleed then make sure that it doesn't get into the piercing which may cause into infection. Put pressure on the bleeding and it should stop and result in a scab. Hope this helps