Those who have dark gums caused by smoking usually recover after quitting smoking. If the skin and mucous membranes are darker in color, or if you have dental calculus, you will not be able to recover after quitting smoking. 1. Cigarettes contain tar, nicotine and other harmful substances, and the gums of some long-term smokers will be blackened by the long-term staining of burning tobacco. For those who have darkened gums due to smoking, usually after actively quitting smoking and strengthening oral care, the gums can return to their normal color, so there is no need to worry too much. 2. It is worth noting that some of the skin and mucous membranes are darker in color, and there are pigmented moles on the gums, and those who are clearly suffering from gingivitis, dental calculus, metal poisoning, and hyperpigmented polyp syndrome may not be able to improve the darkening of the gums after actively quitting smoking, and need to cooperate with the doctor in treating the original disease. It is recommended that people with dark gums develop good habits and avoid continuing to smoke. Patients should also pay attention to maintaining oral hygiene, such as brushing in the morning and evening, rinsing after meals, the rational use of fluoride toothpaste, etc., can effectively prevent and control the darkening of the gums.