My dog has hematoma. Please tell me the treatment, will it reoccur?

Ear or auricular hematomas are fluctuant swellings filled with (bleeding) fluid accumulates under the skin of the inner pinna following trauma to blood vessels and separation from the underlying cartilage. This condition most commonly occurs as a result of violent head shaking or ear scratching secondary to ear infection or parasites/foreign body in ear canals. Some affected animals have no evidence of underlying ear disease. Your vet may use different drainage methods to aspirate fluid with or without medications, but recurrence is likely. The most common method to stop recurrence is surgery that involves performing a S-shaped incision in the concave surface of pinna. However, your vet can advise appropriate surgical method. There can be minor changes in the cosmetic appearance of the ear following the surgery.

Question by – Sheetal, Mumbai