The weather is hot, how is the nosebleed? The weather is hot, how is the nosebleed?

In summer, the weather is hot and the temperature is high. Many people will have various symptoms, such as loss of appetite, heatstroke and nosebleeds. So what is the cause of nosebleeds? Let's take a look together.

What's with the nosebleeds in such hot weather?

Nasal water shortage

In summer, the weather is hot and dry, and the temperature difference between day and night changes greatly, which makes the liquid secreted by nasal mucosa evaporate quickly, and the nasal cavity is dry and itchy due to lack of water, and it is easy to bleed.

Temperature instability

Due to the instability of temperature in a day, nasal capillaries repeatedly expand and contract to adapt to the change of external temperature, which leads to bleeding.

Excessive qi and blood

When the weather is hot and dry, people are in a bad mood and have a bad rest, which will lead to the upward movement of qi and blood and cause nosebleeds. In addition, drinking and eating spicy food in summer may also lead to lung heat, which will enter the nasal cavity, causing telangiectasia and rupture, leading to nosebleeds.

External stimulus

For example, frequent entry into air-conditioned rooms in summer will cause nasal itching in the case of alternating cold and hot. At this time, if you scratch, it is easy to break the capillaries in the nasal cavity, leading to nosebleeds; Also, if you blow your nose often, it is easy to stimulate capillaries and cause blood vessels to rupture.

Nasal inflammation

Dry rhinitis, atrophic rhinitis, acute rhinitis and acute maxillary sinusitis are the common causes of epistaxis. Also, if rhinitis is serious, when sneezing, it will lead to bleeding because of capillary rupture.

Hypertension and arteriosclerosis

Hypertension and arteriosclerosis are important causes of nosebleeds in middle-aged and elderly people, and arteriosclerosis is the pathological basis of nosebleeds. Elevated blood pressure, especially in constipation, overexertion or emotional excitement, will lead to rupture of nasal blood vessels, leading to nosebleeds.

Elevated venous pressure

Diseases such as emphysema, pulmonary heart disease and mitral stenosis can lead to superior vena cava hypertension; The nasal cavity and nasopharyngeal vein of such patients are often swollen and congested, which is easy to rupture and bleed, causing nosebleeds.

platelet abnormality

We know that the function of platelets is mainly coagulation. If the number of platelets or dysfunction, such as primary thrombocytopenic purpura and secondary thrombocytopenia, will lead to nosebleeds, especially in summer, it is difficult to stop the stimulation of high temperature.

Coagulation factor disorder

Hemophilia patients will bleed for no reason because of the lack of coagulation factors, and once bleeding, it is difficult to stop bleeding; Vitamin k can promote blood coagulation, and it is easy to have nosebleeds if it is lacking.

Abnormal vascular wall structure

Such as hereditary hemorrhagic telangiectasia, allergic purpura and drug-induced vascular purpura. In addition to bleeding under the skin of the whole body, it is easy to have nosebleeds.

What about nosebleeds due to hot weather?

If there is less bleeding, press both nasal alars with index finger and thumb for 5 ~ 10 minutes. At the same time, you can also use an ice pack or a wet cold towel to compress your nose. If there is a lot of bleeding, you have to wash the cotton and gauze with absorbent cotton or clear water and soak them, and then slowly put the wet cotton into your nose. It is best to soak notoginseng and Yunnan Baiyao in cotton to stop bleeding.

Tip:

Don't look back when there is a lot of nosebleeds, so as to avoid blood entering the respiratory tract by mistake. It is best not to blow your nose within one day after a nosebleed. Because after nosebleeds, blood clots will form scabs after blood coagulation. At this time, if you dig your nose, it may lead to the peeling of scab skin and the recurrence of nosebleed.