What causes a dry cough without phlegm?
Disease description:
I am a 27-year-old male. Recently, after waking up in the morning, I always experience severe coughing. It is a dry cough without phlegm, and this has persisted for a long time without improvement. Doctor, may I ask what could be causing this?
Doctor's answer (1)
Dr. Li Jingli
The causes of dry cough without phlegm may include several possibilities, mainly:
1. Cold stimulation: Exposure to cold air may irritate the airways, causing bronchial constriction and triggering a dry cough.
2. Allergies: Individuals with allergic constitutions may experience airway narrowing or swelling after exposure to allergens, leading to cough reflexes.
3. Respiratory diseases: Conditions such as bronchitis, pharyngitis, bronchial asthma, and cough-variant asthma can cause dry cough without phlegm due to microbial infections, physical or chemical irritants, genetic factors, or other reasons.
4. Other factors: Chronic pharyngitis, tuberculosis, lung cancer, and other conditions may also cause persistent dry cough without phlegm.
If symptoms of dry cough without phlegm persist or are accompanied by other symptoms, prompt medical consultation and examination are recommended.
