The causes of tingling lips, including oral leukoplakia, low body immunity, external environmental stimulation, allergic stomatitis, etc., are as follows: I. Oral leukoplakia: When suffering from oral leukoplakia, the surface of the mucous membrane of the lips, cheeks and tongue is rough, the sense of taste is diminished, local hardness is accompanied by ulceration, and irritating pain occurs. Second, the organism immunity is low: the immunity of the body of menopausal women decreases, the hormone level is unstable, the secretion of parotid, submandibular, tongue and other glands is reduced, the lip and cheek mucosa lacks the lubrication of saliva, forming a large chap and producing a burning pain. Third, the external environment stimulation: in the cold stimulation or strong light exposure, the local mucosa is damaged, appearing fine scales, sometimes secondary infection, generating local tingling. Fourth, allergic stomatitis: when applying lip balm or using drugs to cause allergic stomatitis, the capillaries below the lip mucosa ooze a lot of fluid, triggering swelling or tingling.