Does bronchial asthma cause coughing?

Written by Han Shun Li
Pulmonology
Updated on March 27, 2025
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Bronchial asthma is a common clinical disease, with main symptoms including paroxysmal wheezing, chest tightness, and difficulty breathing, etc. So, does bronchial asthma also present with coughing symptoms? Indeed, bronchial asthma can also manifest with coughing symptoms, especially the atypical cough variant asthma which is primarily characterized by chronic cough. Moreover, the symptoms of cough often occur at night or early morning, and the coughing can be quite significant, severely affecting the patient's sleep quality. If cough variant asthma is suspected, it is important to visit a hospital in a timely manner for relevant examinations and the treatment principles are the same as for typical asthma.

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Written by Wei Shi Liang
Intensive Care Unit
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Causes of Bronchial Asthma

The most common cause of bronchial asthma is inhalants, which are mainly found in daily life, such as dust mites, pollen, fungi, and some irritating and toxic gases, all of which may irritate the airways and cause asthma. Infections are closely related to the occurrence of asthma, and respiratory infections such as viruses, bacteria, and mycoplasma can all trigger asthma. Additionally, certain specific foods, such as fish, shrimp, crab, milk, and eggs, may cause asthma in certain groups of people. Factors such as the patient's mental state, changes in the climate, and intense exercise are also possible causes of bronchial asthma. These are the most common causes of bronchial asthma onset.

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Written by Zeng Xiang Bo
Respiratory and Critical Care Medicine
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How to check for bronchial asthma?

If there is a suspicion of having bronchial asthma, a series of tests will be carried out at the hospital, mainly including: First, complete blood count, especially focusing on whether there is an increase in eosinophils, to determine the presence of eosinophilic allergic inflammation. Second, imaging of the lungs, including chest X-ray or CT to determine whether there are any specific lesions in the lungs. Third, pulmonary ventilation function and bronchodilation tests, or bronchial provocation tests. Pulmonary function is a gold standard for diagnosing bronchial asthma, often indicating the presence of obstructive ventilation dysfunction. A positive bronchodilation test or provocation test can help in confirming bronchial asthma.

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Written by Han Shun Li
Pulmonology
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Bronchial asthma auscultation characteristics

During a recurrence of bronchial asthma, symptoms such as wheezing, shortness of breath, chest tightness, and coughing occur. During an attack, the patient's chest often appears hyperinflated. Upon auscultation, scattered or diffuse wheezing sounds can be heard, primarily during expiration, and the expiration phase is also prolonged. However, in some severe asthma cases, wheezing sounds may not be present, a condition referred to as "silent chest," which should be noted. If an asthma attack cannot be relieved, it is important to seek medical attention promptly for management by a doctor.

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Written by Zeng Xiang Bo
Respiratory and Critical Care Medicine
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Is bronchial asthma serious?

The symptoms of bronchial asthma vary from person to person, as does its severity. Some patients may have very mild symptoms, only showing slight chest tightness and mild coughing. Other patients may experience very severe symptoms such as respiratory failure, loss of consciousness, cardiac arrest, and sudden death. The clinical presentations are completely different. Therefore, bronchial asthma can be considered a suppressive disease, meaning everyone's symptoms are different, and one cannot generalize; most patients are relatively mild.

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Written by An Yong Peng
Pulmonology
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Does bronchial asthma have wheezing sounds?

During an acute attack of bronchial asthma, patients often have wheezing sounds in their lungs, but it's important to note that some patients may not exhibit wheezing, such as those with chest tightness or cough variant asthma, who only show symptoms of chest tightness and typically do not have wheezing on auscultation. However, administering inhaled corticosteroids and bronchodilators can relieve their condition. Additionally, during a severe acute attack of bronchial asthma, severe airway spasms can occur, leading to a situation where the patient might not have any wheezing sounds, a condition referred to as "silent lung." In such cases, patients often experience difficulty breathing or even respiratory distress, which is usually quite serious and requires active intervention.