Asthma – Causes and Symptoms
Asthma is the inflammation of the airways that causes narrowing and swelling of the bronchial tubes. This results in severe breathing difficulty and is triggered by certain allergens or irritants. When the airways are triggered by external and internal factors like allergens, the air passages swell and is filled with mucus.
Muscles contract and the airways are narrowed. This narrowing makes the lungs difficult to exhale air and this results in severe breathing difficulty leading to an asthma attack.
Causes of Asthma
The exact cause of asthma is not known but there are factors that trigger the airways and this results in anemia. The causes include:
- Scientists are on a trial to find the genes that cause this disorder of the airways.
- One thing that all the asthma patients have in common is airway inflammation and sensitivity.
- The surrounding or the area you live partly determines the asthma attacks.
- Asthma is a kind of allergic reaction and is caused by various triggers.
Most triggers cause asthma attacks in some people. Common triggers are as follows:
- Breathing polluted air
- Getting exposed to airway irritants at work place
- Physical exercise or exertion
- Reflux of stomach contents
- Emotional stress
- Exposure to cold weather
- Exposure to wood smoke or tobacco
- Inhaling respiratory irritants
- Breathing air consisting of allergens like dust or molds
- Upper respiratory tract infections like cold, bronchitis or sinusitis
There are certain warning signs to recognize asthma at the earliest. They include:
- Shortness of breath
- Coughing or wheezing after exercise
- Frequent cough
- Feeling tired and weak after an exercise
- Signs of cold
- Losing your breath
Other severe symptoms
The severe symptoms include:
- Chest tightness
- Shortness of breath
- Severe cough
- Unable to talk due to severe breathlessness
Asthma and its Types
Asthma is classified depending on the severity of the condition. They are as follows:
- In this type the attacks are not more than twice a week .
- At night, not more than twice a month.
- There are no symptoms between the attacks.
- In this the attacks are more than twice a week.
- Night time it is more than twice a month.
- They sometimes disturb regular activities.
- In this type asthmatic attacks can occur daily during day time.
- During the nights it occurs more than a week.
- In this frequent severe attacks occur during the day and the nights.
- The severity of asthmatic attack can change from mild to severe.
When you find early symptoms, consult your doctor immediately and take treatment to avoid severity of the condition.