There are many reasons for coughing in the early morning, such as cough variant asthma, chronic pharyngitis, gastroesophageal reflux disease and so on. 1. Cough variant asthma: a special type of asthma, mainly manifested as irritating dry cough, mostly at night and early morning episodes, without obvious wheezing, shortness of breath and other symptoms. Easily triggered by improper diet, drug factors or environmental stimuli. 2. Chronic pharyngitis: chronic pharyngitis patients because of their own throat mucosa long-term inflammation stimulation, will be more sensitive, coupled with the night by the house air or dust mites and other stimuli, thus triggering the cough. 3. Gastroesophageal Reflux Disease (GERD): a chronic disease in which the contents of the stomach and duodenum flow back into the esophagus, leading to a series of symptoms. Sleeping in a flat state, acidic reflux may reflux to the throat, irritating the throat, trachea, causing coughing, pharyngeal discomfort and other symptoms, thus causing the cough. Always coughing in the early hours of the morning may also be caused by other reasons, it is recommended that patients go to the hospital in a timely manner to identify the cause, under the guidance of the doctor for treatment.