The cause of sweat duct tumor in men is still unclear, and it is easy to be affected by heredity, Down’s syndrome, mental abnormality and other factors to induce the disease. 1. Heredity: if the family has the history of anhidrosis, the offspring will have a higher chance of suffering from anhidrosis, which is a kind of hereditary disease, so it is necessary to prevent anhidrosis when the family has anhidrosis patients. 2. Down’s syndrome: chromosomal abnormalities caused by Down’s syndrome, chromosomal abnormalities cause abnormal development of several organs, which has certain risk of developing in adulthood. 3. Mental abnormality: compared with normal people, patients with mental abnormality are more likely to suffer from anhidrosis. When a man finds that he has sweat duct tumor symptoms and is not sure what causes it, he should go to the hospital for examination and treatment in time, so as to avoid the development of sweat duct tumor, which will cause serious harm to his health.