There are many hidden dangers in raising your head when nosebleeds, which not only can't stop bleeding, but also cause discomfort. Because the nasal cavity is actually connected with the throat, when the nasal cavity bleeds, looking up can't stop the bleeding, but it will make the blood that has flowed out of the nasal cavity flow back to the throat because of posture and gravity, and it has no real hemostatic effect. Moreover, the blood flowing into the throat will be swallowed into the esophagus and gastrointestinal tract, which will stimulate the gastrointestinal mucosa to feel uncomfortable or vomit, and even induce gastritis or gastric ulcer in severe cases. When the amount of bleeding is large, it is easy to inhale and choke into the trachea and lungs to cause aspiration pneumonia, and even block the respiratory airflow to cause suffocation.
So, what is the correct way to do when nosebleeds? In general, the correct way is: sit down, lean forward slightly, open your mouth and breathe through it; Pinch the sides of the nose with thumb and forefinger, and press it toward the back of the head for 10 minute, with slight pain as the degree. If there is still bleeding, you can move the pinch position slightly until the bleeding stops. Nosebleeds can also be divided into front nosebleeds or back nosebleeds according to the location of the bleeding point. Anterior epistaxis often occurs in the Kjeldahl venous plexus in front of the nasal septum, which is a place with dense blood vessels and is easy to bleed; Then nosebleeds often occur on the lateral wall of the nasal cavity. If there is nosebleed in the front nose and the coagulation function is normal, press the hemostasis point for 5 ~ 10 minutes to stop bleeding. If you still can't stop the bleeding, you need to see a doctor. The amount of bleeding in the posterior nostril is usually large, so it is difficult to stop bleeding by itself, and it is easy to vomit blood and choke into the lungs, and it is difficult to visually observe the bleeding point. Therefore, if you suspect bleeding or bleeding in the back of the nasal cavity, you must go to the hospital immediately to seek the help of a doctor to stop the bleeding.
Nose bleeding is a common symptom caused by nasal diseases or systemic diseases, which often manifests as unilateral bleeding and can recur intermittently, especially for teenagers. In spring and summer, the temperature rises At this time, the weather in the north is windy, the climate is dry and the air humidity is reduced, which is the high incidence season of nosebleeds. Therefore, people need to moisturize the nasal cavity in daily life. You can wear a mask, put some vaseline around your nostrils, or wet your nose with hot steam. In addition, people with hypertension and allergic rhinitis should control their condition. Don't pick your nose or force foreign bodies into the nasal cavity at ordinary times, because it may not bleed immediately after stimulating the nasal cavity, but the nasal mucosa has been damaged. Once you have an opportunity, such as living, moving, or even sleeping, you will have a nosebleed.
Finally, I would like to remind you that nosebleeds are just a phenomenon, and we should find out the reason. In addition to common hypertension and some traumatic mucosal wounds, other conditions that lead to nosebleeds include abnormal coagulation, chronic inflammatory diseases such as sinusitis, benign and malignant tumors of nasal cavity, etc. So if you often have nosebleeds, you must be vigilant and go to the hospital for examination in time.
This work is the original of "Popular Science China-A Brief Introduction to Scientific Principles", please indicate the source for reprinting.