為什麼會流鼻血？流鼻血怎麼止住？

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• Why does the nose bleed? How to stop bleeding nose?

  Nosebleeds are caused by a broken or injured blood vessel in the nasal cavity, causing blood to flow out of the nostrils. Here are some common causes of nosebleeds: Dry nasal passages: Dry nasal passages may cause the blood vessels in the nasal passages to become brittle and burst easily. Dry nasal passages can be caused by a dry climate, low humidity, prolonged inhalation of dry air, or excessive use of air conditioning. Nose injury or trauma: Damage to the nose caused by a blow, blow or other force can cause a blood vessel to burst and cause a nosebleed. Nasal infections or inflammation: Conditions such as nasal infections, sinusitis, and allergic rhinitis may cause blood vessels in the nasal cavity to become congested and inflamed, increasing the risk of blood vessels bursting. Hypertension: People with hypertension may be more susceptible to nosebleed due to increased vulnerability of blood vessel walls. Blood clotting problems: Certain blood clotting disorders, such as abnormal platelet function or lack of clotting factors, can cause poor blood clotting and increase the risk of nosebleeds. Drug use: Certain drugs, such as anticoagulants (e.g., warfarin), non-steroidal anti-inflammatory drugs (e.g., aspirin), etc., may affect the ability of blood to clot and increase the likelihood of nosebleeds. High altitude: At high altitude, the air pressure is lower, which may cause the blood vessels in the nasal cavity to dilate, increasing the incidence of nosebleeds. How to stop bleeding nose? To stop nosebleeds, try the following: 1. Sit up straight and lean forward: Keep your head higher than your heart. This helps reduce blood flow to your nasal passages and prevents blood from flowing into your throat. 2, gently pinch the nostril: With a tissue, a clean cloth or your thumb and index finger gently pinch the nostril. Apply moderate continuous light pressure and do not overdo it so as not to re-irritate the nasal cavity. 3, avoid blowing your nose hard: during nasal bleeding, try to avoid blowing your nose hard, so as not to stimulate the nasal vessels again. 4. Cold compress: Put ice cubes or cold wet towels on the nose and bridge of the nose to help constrict blood vessels and reduce bleeding. However, avoid putting cold objects in direct contact with your skin to avoid frostbite. 5, warm water rinse mouth: with warm water gently gargle, can remove the blood in the mouth, reduce the throat of the blood choking. 6. Don't put your head up: Avoid putting your head up, which can cause blood to flow into your throat and cause coughing or choking. If nosebleeds last for a long time (more than 20 minutes) or occur frequently, or are accompanied by other symptoms (such as headache, dizziness, vomiting, etc.), it is recommended to seek professional medical help. Your doctor can assess your condition and take appropriate treatment, such as nasal tamponade, medication to stop bleeding, or other necessary treatments.

  NosebleedsCause of the nosebleedsStop the nosebleedsReduce bleedingBlood clotting problems

  2023-05-30 15:13:52

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