Coughing up phlegm, taking X-ray and drawing blood are not a problem, which may be caused by pharyngitis, smoking, environmental stimulation and other different reasons, and can take medication, improve bad habits, get out of the harmful environment and other measures, and do not rule out the possibility of other diseases. 1. Pharyngitis: pharyngitis can have coughing and sputum symptoms, chest X-ray can not confirm the existence of pharyngitis, so we need to carry out timely examination of pharyngoscopy, such as pharyngitis, according to the doctor’s instructions for the treatment of borax solution gargle and so on. 2. Smoking: Smokers, especially those who smoke a lot of cigarettes every day, may show symptoms of coughing and sputum in the early morning. Quitting smoking is an effective means of controlling cough and phlegm symptoms, so you need to be confident and discipline yourself to quit smoking as soon as possible. 3. Environmental stimuli: If the living or working environment in the smoke or dust is large, can also cause such manifestations, such as kitchen, coal mine. At this time, you need to get out of the environment in time, and at the same time strengthen the exercise, more fresh air. 4. Other diseases may be: such as cough variant asthma, gastroesophageal reflux disease and other diseases can also cause cough, sputum symptoms, there will not be chest X-ray, blood test and other abnormalities, the need to actively target the primary disease treatment. Cough variant asthma can be treated with budesonide formoterol powder inhaler to control symptoms; gastroesophageal reflux disease can be treated with omeprazole and other medications. There are other diseases can also be manifested as cough with sputum, chest X-ray blood test is normal, if the cough symptoms do not improve or aggravate, it is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, in accordance with the doctor’s instructions for treatment.