The causes of total sweating on one side of the hindquarters and buttocks include eczema and autonomic dysfunction. 1. Buttock eczema: eczema can involve the buttock skin, manifested as red spots and pimples on the skin, blisters, oozing, buttocks are prone to dampness, similar to sweating symptoms, in fact, it is an increase in skin oozing caused by inflammation. Treatment should be under the guidance of a doctor to use drugs, such as glycerine lotion, glucocorticoids, boric acid solution. 2. Autonomic dysfunction: Sweating is a physiological phenomenon, the nerves controlling the sweat glands are autonomic nerves, if autonomic dysfunction occurs, panic, chest tightness, sweating, blood pressure abnormalities and other manifestations. Treatment should be under the guidance of a doctor with medication, such as paroxetine, doxepin, vitamin B1. One side of the back and buttocks always sweating patients, it is recommended that usually do not sit for a long time, as far as possible to choose loose clothing, if the symptoms have not been improved, there is a timely hospital medical treatment.