Increased sweating after cold is one of the symptoms of spinal cord cavitation. Spinal cord cavitation is a bizarre sweating phenomenon of increased sweating after cold, accompanied by decreased temperature, hyperkeratosis of fingertips and nails, atrophy, and loss of luster. Due to the loss of pain and temperature sensation, burns and bruises and trauma are likely to occur. In advanced stages, patients develop urinary and bowel disorders and recurrent urinary tract infections. The following diseases may also be the etiology of increased sweating after cold: 1. Hot sweating Hot sweating refers to those whose heart fire is restless and irritable sweating, i.e. Yang sweating. Jing Yue Quan Shu; Miscellaneous Evidence Mol: Yang sweat is also hot sweat. If a person has spontaneous sweating or night sweating, but his pulse shows fire, or he is hot and thirsty at night, or he is hot and cold in the stool, all of these are Yang and Yin deficiency. 2.Mucinous eccrine carcinoma is a rare type of small sweat cancer. 3.ductal eccrine adenocarcinoma is the most common type of small sweat carcinoma. It is often a solitary, slow-growing mass, with a diameter of up to 5 cm, and the mass has been present for months or even years before the patient is seen. Small sweat gland angiomatous hamartoma is rare. The lesions are usually solitary, with sweating on the surface of most of the lesions. They are usually present at birth or occur in infancy. 5, small sweat duct fibroadenoma Small sweat duct fibroadenoma (eccrine syringofibroadenoma) was first reported by Mascaro in 1963 and 44 cases have been reported. However, multiple lesions without other skin lesions have also been reported.