Red flesh bumps at the corners of dogs’ eyes may be caused by the following reasons:

Conjunctivitis: Eye inflammation may cause red bumps to appear at the corners of the eyes.

Sty: Similar to a stye in humans, it is a local infection.

Foreign body irritation: such as dust, hair, etc.

Allergic reaction: Allergy to food, environment and other factors.

Eye diseases: such as glaucoma, cataracts, etc.

Parasitic infections: Certain parasites can cause eye problems.

Genetic defect: Certain breeds of dogs may be more susceptible to this condition.