Chronic ulcers or non-healing ulcers are more common in the elderly (20 out of 1 000 people), whose age is closer to 80 years. The application of the principles of regenerative medicine, actively developing, in the treatment of such diseases, is based on the use of both autologous blood derivatives and autologous mononuclear cells. Objective: to evaluate the effectiveness of the use of plasma enriched with platelets in the treatment of torpid ulcers of the lower extremities in patients of the older age group. A prospective, randomized clinical trial was conducted in 80 patients. According to preliminary calculations, it has been shown that the combination of traditional treatment with the introduction of plasma enriched with platelets leads to accelerated healing of ulcers.