The textbook "Guide to Medical Parasitology," ed., P.R. Alimkhodzhaeva, et al., Discusses the issues of practical parasitology: they cover representatives of parasites with a detailed description of their characteristics and morphology. Methods of microscopic studies, mechanisms of biological parasitism, general and particular issues of protozoology are described. A general classification of protozoa that play an essential role in medical practice is given. The basics of medical helminthology with the characteristics of classes of representatives are presented.