Symptoms/Ears - Rattypaedia

Ear Discharge: This can be a sign of serious Ear Infection or Ear Abscess, or a foreign body trapped in the ear.
Lumpy Ears: Scabs and lumps around the edge of the ears can indicate Mange Mites
Lumps below the ear can be due to an Ear Abscess or a Zymbals Gland Tumour.
Pale Ears: This can be a sign of poor circulation due to Heart Problems
Red Ears: This can be a sign of Heat Stress. The blood flow increases to the ears, tail and feet to attempt to lose the excess heat.
Vibrating Ears: Does vibrate their ears rapidly when in Season (heat).