Why do I have unexplained tearing?

Clause. First, because of the problem of the lacrimal duct, the tear duct is blocked or narrowed, resulting in tears that cannot go down to the lacrimal sac and cause the nasal cavity, which can only flow out from the corner of the eye, so there is a phenomenon of continuous tearing. Clause.

Second, it is because of poor eyesight, excessive use of eyes or inappropriate glasses caused by visual fatigue, which will also cause unconscious tears.

Tearing all the time is considered a symptom of blocked tear ducts. Occlusion of the tear duct can cause punctum, lacrimal tubules, lacrimal sacs, nasolacrimal ducts, etc., poor irrigation of the tear ducts, reflux of irrigation fluid, and even purulent discharge may occur. Pay attention to eye hygiene, avoid exertion, stay up late, and don't rub your eyes.

Tearing at every turn is considered a symptom of tear duct obstruction. Tear duct obstruction, tear pits, lacrimal tubules, lacrimal sacs, nasolacrimal ducts and other parts can occur, the irrigation of the lacrimal duct is not smooth, the irrigation fluid reflux, and even purulent discharge. Always pay attention to eye hygiene, avoid exertion, stay up late, and don't rub your eyes.

When patients with eye allergies go out, they need to wear goggles to avoid contact with pollen or other substances that cause allergies.

Lacrimal duct disease is a common and frequent disease in ophthalmology.

Excessive pleasure or pain can make ** tears.

There are many reasons why the eyes suddenly watery :

Wind blows, sand, bright light, smoke, harsh smells, relationship problems, etc., can make the eyes watery.

Because a certain scene touches the depths of your heart, you cry because of sadness, happiness, regret, disappointment, grievance, etc., and most of them are unconscious.

Because people need to have an emotional outlet, and the eyes are the most direct emotional outlet.

Human tears are secreted all the time, flowing on the surface of the eyeball. However, there is very little tears secreted and they flow along the surface of the eyeball and in the tiny spaces inside the eyelids, so you don't feel that the tears are flowing.

However, in the blink of an eye, the tears on the surface of these eyeballs are sucked into the nasolacrimal duct, the sewer of the tears. Don't underestimate this not-so-long tube, it's the only way for tears to reach your nose. The lacrimal glands constantly secrete tears, and the nasolacrimal ducts constantly excrete tears, so people usually do not shed tears.

When a person yawns, his mouth is wide open, and he may exhale more than he can out of his body in order to exhale carbon dioxide and inhale oxygen. With the action of yawning, a stream of gas exhales forcefully from the mouth. The muscles of the cheeks, tongue and throat tense and contract, and the pressure in the mouth and nose increases.

As a result of the increased pressure in the nasal cavity, it will temporarily block the work of the nasolacrimal duct to excrete tears, and the "sewer" will not be passed, and the tears will not flow, and more and more tears will accumulate in the eyes. There will be tears in his eyes, and finally he will burst out of his eyes and flow to his face.

In fact, not only yawning can cause tears, but also when people laugh, sneeze, cough, and vomit, and the reason is the same.

Reading and crying may be too long, or the posture is incorrect, visual fatigue, you should put aside a period of time to look at the distance, relieve the pressure on your eyes, and protect your eyes. There are several possibilities for long-term tearing: (1) functional tearing, that is to say, the tear duct is open by doing tear duct irrigation to check that the tear duct is passable, and tearing in the wind or cold air is not an organic lesion, and some ** trachoma eye drops can be dropped.

2) Organic tearing, chronic dacryocystitis caused by trauma, trachoma or conjunctivitis, can be operated on after being diagnosed in the hospital**In addition, when you wipe your tears, you should wipe inward and upward, not downward, which is easy to cause tear punction valgus and more likely to cry. Eye pain can be caused by malnutrition, and a multivitamin can be usually taken.

It is recommended that you go to a regular hospital for a check-up to identify the specific cause of tearing eyes and then take further effective treatment.

People often use the term 'crocodile tears' to describe the hypocritical bad guys, saying that they have harmed others and shed fake tears. Do you know why crocodiles cry?

In general, a short period of time is helpful and harmless to the eyes. Crying is also a catharsis of emotions. Quite normal. I cry when I'm sad, and I cry when my eyes are uncomfortable.

There is a disease called "windward tears", which will cry when you get up early or when you are not used to the wind blowing. It is rumored that white fungus is often eaten and will be lifted.

Tearing can be caused by inflammation of the eye, such as conjunctivitis, trachoma, trauma, foreign bodies, etc., which can narrow or obstruct the tear ducts.

Why do people shed tears? What does tearing do for the human body? What's the point?

This may seem like a simple question, but it has long puzzled researchers. Charlie Darwin, the founder of the theory of evolution, believed that tears were a "relic" of some kind of evolution, unrelated to the competition for survival in the evolutionary process. Darwin analyzed:

When you cry, the microvessels around the eyes become congested, and the small muscles contract to protect the eyes, causing the lacrimal glands to secrete tears. Darwin thus argued that for the human body, tears themselves are meaningless "by-products". However, the American anthropologist Ashley Montago had the opposite view.

He believed that tears had benefits for the human body, and that these benefits had an evolutionary effect and could therefore be preserved from generation to generation through natural selection. Human tears are the result of survival of the fittest. Montaggo gives an example:

Tears contain lysozyme, a self-defense substance that protects the nasopharyngeal mucosa from bacterial infection. Observations have shown that dry crying without tears can easily dry out the nasopharyngeal mucosa and become infected. Adopt it.

Condition analysis: Hello, the tear duct is blocked, so that tears cannot flow into the nasal cavity and flow to the cheeks, which is called tear overflow. Guidance:

The site of the obstruction can be identified through lacrimal irrigation, lacrimal duct exploration and lacrimal duct X-ray iodine oil imaging, and then different methods can be taken. Such as lacrimal duct dilation, lacrimal tubular anastomosis and lacrimal sac-nasal anastomosis.