Common Causes of Otitis Externa and Otitis Media in Dogs

Common causes of otitis externa in dogs:

1. Too frequent or rough cleaning of the dog’s ears

Many dog ​​owners will clean the dog's ears too roughly or frequently. These improper cleaning will destroy and stimulate the epidermal cells, causing infection and causing otitis externa in dogs.

2. Allergies

Dogs are allergic to something in their food or environment, such as pollen or grains, that can cause inflammation or itchy ears.

3. Environment

Humid weather, swimming, and foreign objects brought in by the woods or walking in the wild, if not dealt with in time, may bury hidden dangers for ear problems.

4, parasites

Ear mites can cause ear inflammation and itching, leading to secondary infections. If not handled properly, it can induce otitis externa.

5. Other medical problems

Suffering from other ear diseases such as tumors, adverse reactions to drugs, autoimmune diseases, ear skin keratinization or endocrine disorders may cause changes in the ear environment and breed bacteria.

Common causes of otitis media in dogs:

1. Caused by bacterial infection

A common cause of otitis media in dogs is a descending infection of chronic bacterial otitis externa, such as Gram-negative bacteria.

2. Caused by foreign body damage

A foreign object inside causes a perforation of the ear canal and tympanic membrane leading to inflammation and secondary infection within the dog's middle ear. If the excrement shoveler often uses ear hair powder, it can cause damage to the eardrum, and then dry out in the ear canal and cause secondary damage.

3. Caused by otitis media in the middle ear

When the secretory function in the dog's middle ear is abnormal, mucus in the ear will be overproduced and cause otitis media.