Gums yellow-brown considerations related to pigmentation, calculus, dental fluorosis, gingivitis and so on. 1. Hyperpigmentation: Gums can be yellowish brown when developing due to hyperpigmentation. 2. Calculus: plaque formation, tartar deposits can cause calculus, which can be yellowish-brown, grayish-black, and thus manifested as yellowish-brown gums. Some patients also have other symptoms such as swollen gums, bleeding, bad taste in the mouth, and weakness in chewing. 3. Gingivitis: Gingivitis is related to plaque, tartar, bad restorations, food impaction and so on. The disease can cause some patients with yellow-brown gums, and accompanied by gum texture soft and fragile, deepening the depth of the gingival sulcus, bleeding and other conditions. It is recommended that people with yellowish-brown gums seek medical examination, and if it is clear that the disease is the cause, they can cooperate with the doctor to take therapeutic measures, so as to promote the gums to return to normal color.