Hand sweating is a disease caused by abnormally elevated sympathetic nerve excitability of the sweat glands of the dominant hand, which is mainly manifested by abnormal sweating of the hands, and is a common disease in thoracic surgery, which is not harmful to human body. In life, patients are often plagued by excessive sweating of the hands, and even produce anxiety and mental stress. Mild patients mainly manifested as wet palms, do not need treatment; moderate and severe patients mainly manifested as excessive sweating can be wet a handkerchief, and even the palm of the hand was dripping, patients can consider using antiperspirant, or oral medication and other treatments, but the drug treatment effect is poor; now there is also fluorescent imaging ETS minimally invasive technology, the therapeutic effect is more accurate. Hand sweating is a congenital disorder. The cause of the disease is still unclear, and may be related to sympathetic nerve dysfunction. The human sweat glands are innervated by sympathetic nerves. Sweat is produced when the glands secrete after sympathetic nerve excitation. The sympathetic nerve is part of the body’s visceral nerve (also known as the vegetative nerve). The excitation of this nerve is not directly governed by human consciousness. The excitability of the sympathetic nerve automatically increases when a person is in an emotional state such as nervousness, excitement, or irritability. Normally, the sympathetic and parasympathetic nerves are antagonistic to each other and work together to skillfully regulate the activities of the body’s internal organs as well as mental and physical states. However, in patients with sweaty hands, the sympathetic nerves innervating the palm of the hand hyperfunction, resulting in a large amount of sweaty palms, while the sympathetic hyperfunction also caused by capillary contraction, so these patients tend to have low skin temperature in the palm of the palm, a kind of “wet and cold” state. The cause of this hyperfunction is still unclear.