Tidal sweating refers to the secretion of sweat by the sweat glands. There are two types of sweating, one is normal sweating and the other is abnormal sweating. The abnormal sweating may be a result of the body’s defensive Qi not being consolidated, leading to Yang deficiency and Qi deficiency. It must be checked to confirm the diagnosis. I. Congenital hereditary 1. congenital ectodermal dysplasia anhidrosis. 2.Riley-Day syndrome (water loss dry syndrome is autosomal recessive inheritance. With hyperhidrosis. 3, Spanlang Tappeiner syndrome (alopecia, hyperhidrosis. The lingual corneal opacity syndrome is autosomal dominant. 1. Hyperhidrosis is caused by mental tension, emotional excitement and neurological stimulation. 2, sweat rash mental factors as an important cause. 3, nasal red granulomatosis may be vasodilatory nerve disorder. 3, disease caused by 1, night sweats Mostly seen in patients with tuberculosis night sweats. 2, dry syndrome whole body anhidrosis. 3.Local anhidrosis is seen in congenital ichthyosis; systemic scleroderma; leprosy; chronic radiation dermatitis; transverse myelitis; spinal cavernous disease. 4.Hematochezia See in hemophilia and plague. Fourth, drug-induced color sweating When the injection of methylene blue can make the sweat cyan, take iodide can make the sweat light red, internal chlorophenanthrene can make the sweat red. Fifth, by the bacteria and sweat in the organic substances mixed action such as odd sweat is mostly seen in the axillary sweat gland department. Sixth, urea sweating syndrome