The world's largest palm China named Lu Hua (transliteration) of men suffering from a rare disease macrodactyly, in July 2007, he was sent to the Shanghai hospital for treatment, doctors found his left thumb 26 centimeters long, index 30 centimeters long. July 20, a doctor for as long as seven hours of surgery, will Lu Hua index finger and thumb the length of narrowing. In the surgery, doctors removed about 11 kg weight of muscle and bone. According to plan, he also needed a second surgery. Macrodactyly disease may be caused by lymphoedema.