Causes of red canthus of dog’s eyes:

1. Redness of canthus of dog’s eyes caused by inflammatory reaction when bacterial infection, keratitis, conjunctivitis, etc. red.

2. Dogs with inverted eyelashes can also cause redness at the corners of their eyes due to constant stimulation of the eyelashes.

3. When the dog’s eyes are irritated by foreign objects such as dust, it will also cause the corners of the dog’s eyes to become red.

4. Dogs infected with parasites can also cause the corners of their eyes to turn red.

Solutions to redness at the corners of dog's eyes:

1. If there is no trauma or foreign matter in the eye, clean it with saline and apply eye drops.

2. If it is caused by inverted eyelashes, you can help the dog cut off the excess eyelashes and take the dog to the hospital for surgery to solve this problem.

3. If it is caused by parasites, the owner should deworm the dog in time and regularly.

4. If it is caused by eye inflammation, use eye drops for the dog to reduce inflammation.