How does mastoiditis affect hearing and memory loss?

Hearing poss, mem no: Severe mastoiditis or cholesteatoma formation can significantly damage hearing because it can destroy the ear drum or damage the three small ear bones in the middle ear. It will not affect memory. True mastoiditis is fairly uncommon. It is often mentioned in radiology reports but these can be misleading and lead to unnecessary worry. Go see a good ENT surgeon to confirm the diagnosis.