Hard edema of the palm is a local edema caused by inflammation of the palm tissue due to trauma, infection, autoimmunity, etc. For various reasons, some edema may persist for more than a month to 1-2 years. “In some of these cases, the edema fluid is rich in protein, which will gather a large amount of fibrin and cause the formation of scar tissue together with inflammatory proliferation reaction, making the skin and subcutaneous hardening. This results in the formation of a “hard edema.” In rostral pectoralis minor syndrome, there is a feeling of swelling and fullness in the hands and fingers, numbness and tingling in the forearms and fingers. The disease occurs in young people who are muscular, short, fat and thick-necked, and most often develops at work. There is a feeling of swelling and fullness in the hands and fingers, and numbness and tingling in the forearms and fingers. Hard edema appears in the uncinate of the palm, with early flushing and characteristic large flaky finger peeling during the recovery period, commonly at the skin junction of the nail bed. Subcutaneous stasis is formed when the microvessels under the skin are damaged and ruptured, and blood is stagnated under the skin. The bruised skin is blue-purple in color, and the surface near the injury is usually not a major problem except for a slight elevation and pain, but attention should be paid to whether the injury involves the following bones and internal organs.