Coughing when you laugh usually indicates high airway sensitivity, which may be due to cough variant asthma, respiratory infections or other causes.
1. Cough variant asthma: Cough variant asthma is a special kind of asthma, usually accompanied by airway hyperresponsiveness, cold air inhalation, laughter and other situations may lead to coughing symptoms.
2. Respiratory infections: respiratory infections such as acute pharyngitis, acute tonsillitis and acute bronchitis, etc., due to airway mucosal damage, can also lead to a more sensitive organism, a cough when you laugh.
3. Other reasons: for example, allergic cough may have similar symptoms, and even lung cancer may also lead to increased airway sensitivity, tickling cough, coughing when laughing or speaking.
To summarize, if you have a cough when you laugh, you need to consult a doctor in time to find out the cause.