Why does snot keep flowing when people have a cold, and where does it come from?

When you have a cold, your nose is always runny, so what are they hiding in?

When the cold virus invades the body from the respiratory tract and causes a person to catch a cold, the virus moves through the nasal cavity, causing the nasal mucosa to swell, and the nose secretes more extra water or mucus (secretions) to help us get rid of the dead virus naturally. If the original clear nasal discharge turns into yellow nasal discharge, it means that the nasal cavity has been inflamed by other bacteria or viruses, and the yellow and clear nasal discharge is like pus. When people are healthy, they have a strong resistance to various viruses.

However, if the body cannot adapt to the hot and cold season, the resistance will be weakened, and the cold virus will take advantage of the weakness to cause diseases. Therefore, to prevent colds, you must first pay attention to your daily health care. In addition, because the cold virus will be sprayed everywhere with the cough and sneezing of the patient, and the opportunity to spread it, it is necessary to avoid crowded public places as much as possible during the cold epidemic season.

If you have used public equipment, you must remember to wash your hands and do not touch your mouth and nose with your hands to avoid infection.

A steady stream of snot from the ** sedan spring teased as follows:Nasal mucus is a fluid secreted by the nasal mucosa, nasal mucus is a simple substance composed mainly of water, glycoproteins, and inorganic salts suspended on it.

When you have a cold, you will have a runny nose, and when you are healthy, a normal person secretes about hundreds of milliliters of nasal mucus every day, which is equivalent to the amount of a coke that flows to the back of the nose and enters the pharynx, and returns to the body.

Nasal mucus is nutritious and warm to bacteria, and it is parasitic when you are sick, and the nasal mucus with bacteria is yellow or green.

Under normal circumstances, the nasal mucosa of the human being secretes mucus all the time to moisten the nasal membrane, moisten the inhaled air, and stick to the dust and fine dust and microorganisms 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 to the posterior nasal orifice to the pharynx in the direction of the movement of nasal mucosal cilia, 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.

The specific substance is not clear, but I know that nasal discharge is composed of substances and germs in the body, runny nose is to bring germs out of the body, when you have a cold, you can have a runny nose, it means that you have a good physique, and generally do not fall ill. It's basically troublesome to not have a runny nose, exercise more, drink plenty of water (resolutely not a drink), and don't stay up late. The problem of nasal discharge was solved in a few days.

People secrete a lot of nasal discharge every day, but we can evaporate it on our own when we are not sick. But when we catch a cold, some of the body's basic balances are broken, and we will have a runny nose all the time. It is also the person's own immune system that wants to eliminate bacteria through nasal discharge, so don't worry.

When you have a cold or rhinitis, the nasal mucosa is generally edematous and inflamed, and there is a lot of water inside, and there is naturally more water secreted. In addition, in order to deal with infected germs or allergens, a large number of white blood cells in the body will rush to fight viruses or allergens, resulting in an increase in the amount of nasal discharge.

This is the mucus in the nasal passages, and when cold air is inhaled, these microorganisms and dust turn into nasal discharge.

It is a mucous membrane in the nasal cavity. At the same time, this mucosa also undergoes secretory activity. When secreting, air is also inhaled, and then liquid appears.

Part of the snot is actually tears. The tear glands in the eyes also make tears to moisten the eyes all the time, and the reason why we don't have tears all day long is because these tears flow from the tear ducts that connect the eyes to the nasal cavity and become part of the nose.

Human nasal mucus is secreted by mucus glands distributed on the mucous membrane of the nasal cavity. Normally, about 500-1000 ml is secreted per day, and its function is to humidify the dry air inhaled, and at the same time, it can also carry away foreign substances such as dust. When everyone suffers from a cold, the main lesion is the congestion and edema of the nasal mucosa, and the secretion of mucus glands increases, so the nasal discharge appears to be particularly numerous.

Normally, nasal discharge is colorless and transparent, but when you have a cold and a bacterial infection, the color of the nasal mucus changes, and the specific color varies with different bacterial species. Purulent discharge is a typical manifestation of purulent lesions.

Where does snot come from? Why does the snot flow violently when I catch a cold?