Dogs shed tears, and dogs will shed tears to protect their eyes

Dogs, like humans, can secrete two types of tears, one is basal tears, and the other is reflex tears. tears.
Basic tears:Basic tears are produced in the blink of an eye. The amount produced is so small that we can hardly feel it. The main components are salt and sterilizing substances, which have the effect of maintaining Moisturizing and antiseptic effects on eyes.

Reflex tears: Reflex tears are a protective reaction produced by conditioned reflex when foreign objects and dirt such as sand, dust, insects, etc. enter the eyes. They can clear the foreign objects and protect the eyes. clear.

Do dogs shed tears because of emotions?

Usually humans will shed tears when their emotions fluctuate or have severe mood swings, but do dogs have this kind of emotion? Dogs actually have emotions similar to humans. They can also be sad, anxious, sad, and have many of the emotions humans have, but they experience and express these emotional states in different ways. But "crying" is not how they express their emotions.

When do dogs become full of tears?

1. Daily diet problems: Dogs tend to shed tears when they eat too salty or irritating food.

2. Nasolacrimal duct obstruction: Under normal circumstances, dog tears flow into the nasal cavity from the nasolacrimal duct, but when the nasolacrimal duct is blocked, the tears will overflow from the corners of the eyes.

3. Ear canal diseases: When the ear canal is infected by bacteria, viruses, parasites, or ear canal pain, itching, pain will also affect the area around the eyes, and at the same time stimulate the secretion of lacrimal glands, resulting in excessive tears that cannot be recovered. When the nasolacrimal duct is drained, it drains from the corner of the eye.

4. Eye inflammation: If the dog's eyes suddenly become very red and shed tears, check to see if there are foreign objects in the dog's eyes, and whether the conjunctiva and eyelids are normal. It may be inflammation, or foreign objects have entered the eyes.

5. Entropion: When the eyelids are entropion, the eyelashes will tighten and cause the eyes to shed tears.

6. Heredity: Primary polytemarism is a genetic disease that causes excessive secretion of tears in dogs and can also cause them to shed tears.

7. Special breeds: All short-nosed dogs (such as Pug, Shih Tzu, etc.) often have larger nasolacrimal duct curvatures, so the amount of tears removed is limited. Normal tear secretion can only flow out through the eyes, so Easier to cry.