Shortness of breath Causes - Mayo Clinic
2020年6月13日 · Most cases of shortness of breath are due to heart or lung conditions. Your heart and lungs are involved in transporting oxygen to your tissues and removing carbon dioxide, and problems with either of these processes affect your breathing.
Shortness of breath Causes - Mayo Clinic
Shortness of breath — known medically as dyspnea — is often described as an intense tightening in the chest, air hunger, difficulty breathing, breathlessness or a feeling of suffocation. Very strenuous exercise, extreme temperatures, obesity and higher altitude all can cause shortness of breath in a healthy person.
Emphysema - Symptoms and causes - Mayo Clinic
2024年11月19日 · Causes. Emphysema results from long-term exposure to airborne irritants, including: Smoking cigarettes, which is the most common cause. Chemical fumes, especially in the workplace. Vapors and dusts, especially in the workplace. Rarely, emphysema results from a gene change passed down in families.
Shortness of breath in adults - Mayo Clinic
Find possible causes of shortness of breath based on specific factors. Check one or more factors on this page that apply to your symptom.
Shortness of breath When to see a doctor - Mayo Clinic
2020年6月13日 · Seek emergency medical care if your shortness of breath is accompanied by chest pain, fainting, nausea, a bluish tinge to lips or nails, or a change in mental alertness — as these may be signs of a heart attack or pulmonary embolism.
Sarcoidosis - Symptoms and causes - Mayo Clinic
2019年1月30日 · Causes. Doctors don't know the exact cause of sarcoidosis. Some people appear to have a genetic predisposition to develop the disease, which may be triggered by bacteria, viruses, dust or chemicals. This triggers an overreaction of your immune system, and immune cells begin to collect in a pattern of inflammation called granulomas.
Sleep apnea - Symptoms and causes - Mayo Clinic
2023年4月6日 · This less common form of sleep apnea occurs when your brain fails to send signals to your breathing muscles. This means that you make no effort to breathe for a short period. You might awaken with shortness of breath or have a difficult time getting to sleep or staying asleep. Risk factors. Sleep apnea can affect anyone, even children.
Asthma - Symptoms and causes - Mayo Clinic
2024年4月6日 · Find out what causes or worsens your asthma, and take steps to avoid those triggers. Monitor your breathing. You may learn to recognize warning signs of an impending attack, such as slight coughing, wheezing or shortness of breath.
Bronchitis - Symptoms and causes - Mayo Clinic
2024年7月31日 · Causes Acute bronchitis is usually caused by viruses, typically the same viruses that cause colds and flu (influenza). Many different viruses — all of which are very contagious — can cause acute bronchitis.
Heart failure - Symptoms and causes - Mayo Clinic
2023年4月20日 · Heart failure occurs when the heart muscle doesn't pump blood as well as it should. When this happens, blood often backs up and fluid can build up in the lungs, causing shortness of breath. Certain heart conditions gradually leave the heart too weak or stiff to fill and pump blood properly.