What does a person s snot change? How human snot is formed

Snot. It is a mucous discharge from the nasal mucosa.

In order to moisten the inhaled air, the nasal mucosa normally secretes a small amount of mucus, but it does not flow out of the nasal cavity and does not have an abnormal odor. When there is inflammation in the nasal cavity, secretion increases. The nature of nasal discharge can often be used to distinguish various inflammations, such as mucous or purulent nasal discharge, scab-like nasal discharge with foul odor, watery nasal discharge with large amounts, unilateral blood discharge with nasal congestion, etc., which should be differentiated in detail according to the patient's age, medical history, and accompanying symptoms.

Symptoms Possible conditions.

Discharge a large amount of serous watery fluid with cold symptoms Acute rhinitis is a cold.

Profuse, watery nasal discharge, accompanied by nasal itching, continuous sneezing, etc., tends to come on suddenly and stop quickly. Allergic rhinitis.

Mucous or mucopurulent nasal discharge, which is very large, often flows into the pharynx and is coughed up through the mouth, with alternating and intermittent nasal congestion. Chronic pure rhinitis.

Fishy, foul-smelling nasal discharge, often forming a yellow-green dry scab that is not easy to blow out. Atrophic rhinitis.

Early efflux is similar to acute rhinitis, but quickly becomes mucopurulent or purulent, and usually occurs in the affected nasal cavity. It is accompanied by fever, headache and local swelling and pain, and the sinuses are obviously tender and even red and swollen. Acute sinusitis.

Mucus and pus flow from the nasal cavity on the affected side for a long time, and it often flows into the pharynx and feels more "phlegm", and the sense of smell is often reduced. Chronic sinusitis.

It is more common in patients over 40 years of age, with recurrent unilateral mucopurulent bloody nasal discharge, i.e., bloody foul-pustuated nasal discharge. Malignant tumors of the nasal cavity and sinuses.

It is more common in children, with a history of foreign body insertion, and usually one-sided rancid or bloody foul-purulent nasal discharge, accompanied by nasal congestion. Nasal foreign bodies.

In addition, in the prodromal phase of infectious diseases such as measles, scarlet fever, and whooping cough, cold-like symptoms may occur, which can cause runny nose, and attention should be paid to their exposure history and other special manifestations (see related pages). Nasal diphtheria is often mucopurulent and mixed with blood, occurs in children, has a very low incidence and can be found to be covered with a grayish-white pseudomembrane on the nasal mucosa.

Mucous discharge from the nasal mucosa.

I think it's urine, I don't finish it! Girls still have reflux, that is, menstruation from the nose!!

Nasal discharge is formed by the fluid secreted by the nasal mucosa.

Definition: Under normal circumstances, the nasal mucosa of the human body secretes mucus all the time to moisten the nasal membrane, moisten the inhaled air, and stick to the dust and fine dust inhaled from the air, which is nasal discharge. Normal people secrete about hundreds of milliliters of nasal mucus every day, but these nasal mucus flow in the direction of the nasal mucosal cilia movement, to the posterior nasal orifice to the pharynx, plus evaporation and dryness, it is generally not seen to flow out of the nasal cavity.

In fact, runny nose when cold is a natural detoxification effect of the human body, although taking medicine can stop nasal congestion and other uncomfortable symptoms, but also destroy this natural mechanism, many people like to use the method of inhaling vapor to improve the problem of nasal discharge, but it is a way to save money and temporarily solve nasal congestion. Runny nose is most common in rhinitis, nasal polyps, sinusitis, etc.

The inner surface of the nasal cavity of healthy people is lined with a complete layer of mucosa, on which there are many goblet cells with secretory function, and there are mucous glands under the mucosa, which usually carry out secretory activities, and the secreted water is used to moisten and inhale air, in addition, the mucus glands often secrete a small amount of mucus, which is evenly distributed on the surface of the mucosa. It is very viscous and can adsorb dust and microorganisms in the air inhaled. Mucus also contains lysozyme, which has the ability to inhibit and dissolve bacteria.

Under normal circumstances, relying on the cleansing effect of this mucus, the inhaled air reaches the back half of the nasal cavity with little to no microorganisms.

Normally, the fluid secreted by the nasal mucus glands and the fluid that is evaporated are in relative equilibrium. Once pathological changes occur in the nasal cavity, the discharge may increase, resulting in the formation of nasal discharge.

I also want to know, if you know, let's talk about it.

Hehe, it also made me more knowledgeable.

Healthy people are covered with a complete mucus layer on the inner surface of the nasal cavity, secreted by a mucus layer, secreted goblet cells, and mucous glands under the mucosa. They are usually constantly secretory, secreting water for wet inhalation of air. In addition, the mucus glands secrete small amounts of mucus, which are evenly distributed on the surface of the mucosa.

Adsorbs dust and microorganisms inhaled into the air, and the mucus also contains lysozyme, which has the ability to inhibit and dissolve bacteria, and this mucus is nasal discharge. Most nasal discharge is secreted by the nasal mucosa itself. The nasal mucosa contains a type of goblet cell that produces a lot of mucin, which is released into the outer cell and absorbs a large amount of water, forming nasal mucus for nasal use.

Part of the nose is actually a tear. These tears produce a local stream from the lacrimal tubules and then flow to the nasal cavity through the nasolacrimal ducts, where they become part of the nose.