It is normal to quit smoking without spitting out black sputum, not everyone will spit out black sputum after quitting smoking, and it may be accompanied by coughing, nausea and other discomforts for a short period of time after quitting smoking. The main reason for quitting smoking is that a long time of smoking tobacco, will make the lungs have different degrees of tar, nicotine and other harmful substances, accompanied by sputum discharged from the body, there may be black sputum, sputum color will become lighter with time, but not everyone will have such a situation, so after quitting smoking, not to spit out the black sputum is normal. Smoking is harmful to your health and quitting in time is good for your body.