The authors have analysed the initial results of treatment in 64 patients suffering obliterating diseases of arteries of upper and lower extremities by means of irradiation with a helium-neon laser the least electric resistance points. The control over the results of treatment is exercised basing on findings of thermovision study and patients' subjective sensations. The best results were gained in treatment of patients with Reynaud diseases and obliterating endarteritis. The therapy employed yielded an insignificant effect in various forms of atherosclerosis of the lower extremities.