Waking up in the morning with black sputum in the throat may be related to smoking, or due to pneumonia, pneumoconiosis and other diseases. 1. Smoking: If you have a long history of smoking, nicotine and tobacco particles will be attached to the airways and alveoli, and when they accumulate to a certain extent, they will form a black substance, which will lead to black sputum in the throat when you wake up in the morning. 2. Pneumonia: This disease is associated with bacterial, viral, fungal and other pathogenic microbial infections. Patients will cough up phlegm and sputum and other symptoms, when the respiratory tract phlegm for a long time can not cough out, can be manifested as coughing black sputum. 3. Pneumoconiosis: the cause of this disease is long-term inhalation of inorganic minerals, causing diffuse nodular or lattice interstitial fibrosis, which is a kind of occupational disease. If the patient is inhaled carbon black dust or graphite dust and other substances, it is easy to wake up in the morning with black sputum in the throat symptoms, there will be a cough, shortness of breath and other manifestations. Waking up in the morning with black sputum in the throat may also be related to other diseases, and it is recommended that the patient go to the hospital to clarify the specific cause.