Swollen gums are one of the common symptoms in dentistry. Patients themselves often have chronic inflammation, and when the body’s resistance decreases, the weather is dry, they eat spicy and irritating food or suffer from diseases such as diabetes, it leads to an acute attack of the original chronic inflammation and swollen gums symptoms. It is easily confused with swollen gums caused by leukemia, so we need to make a differential diagnosis and confirm the condition in order to prescribe the right medicine. Diagnosis: Swollen gums, flushed and swollen gums, and usually accompanied by pain. The teeth are the remainder of the bones and are dominated by the kidneys. The foot Yangming meridian is in the upper gums and the hand Yangming meridian is in the lower gums. Inflammatory gingival atrophy is manifested by red, swollen and painful gums, and bleeding is common when brushing the teeth. Gingival atrophy in the elderly often makes the exposed tooth pole abnormally sensitive to hot and cold temperature changes and acidic food, which hinders eating and reduces the quality of life, so you should pay attention to prevention and treatment. Leukemia is caused by an increase in white blood cells, which accumulate in the peripheral blood vessels, causing swelling and hypertrophy of the gums, with pale gingival color, and if accompanied by inflammation, the gingival margin is congested and oozing with blood. In severe cases, there is necrosis of the gingival papillae or gingival margins and bad breath. Vitamin C deficiency gingivitis. The entire gingiva is purplish red and bleeds easily. In severe cases, the gingival margin is necrotic and bad breath is evident. Long-term phenytoinamide patients can develop gingival hyperplasia, which is characterized by the same gingival hyperplasia on the buccal and lingual sides, nodular, firm, light-colored, and not easily bleeding.