Delayed wound healing, especially diabetic ulcers, is an urgent problem in rehabilitation medicine, despite significant progress in understanding the basic principles and issues that occur during these processes. High-intensity laser therapy with Nd: YAG Arthro laser in the treatment of chronic diabetic foot ulcers (deep ulcers of the 2nd degree) shows good results in more than 80% of patients. Uses of Nd: YAG Arthro LASEST are characterized by a high degree of safety and comfort in the treatment of diabetic ulcers. The special shape and sequence of laser pulses creates a special spatial distribution of laser energy in the tissues without the risk of overheating of superficial and connective tissues. In addition, the high efficiency of the technique is due to both deep penetration by the radiation of a medical laser Nd: YAG Arthro and a complex effect on damaged tissues, among which there are three main components – photomechanical, photochemical and photothermal effects.