Yahoo: Chronic Mouth Inflammation and Ulcers in Dogs: Symptoms, Causes, & Treatments (Learn more about chronic mouth inflammation and ulcers in dogs. Picture credit: Westend61 / Getty Images) Chronic mouth inflammation and ulcers in dogs is a condition that affects the mouth. An ulcer is a painful open sore that can occur in the stomach, intestines, skin, mouth, and eyes.

Understanding the Context

Ulcers are usually caused by infections.