Pelvic pain (PP) is an important issue. Current definitions of PP do not reflect its topography, thereby providing prerequisites for arbitrary interpreting of the definition. The author describes PP terminology and classifications and suggests his definition of PP and its topographic classification. The author proposes "chronic tension pelvic pain" (a variant of dysfunctional pelvic pain) and gives pathogenic reasons for its clinical use as a nosological unit. This paper addresses the utility of classifying tension pelvic pain as coupled or not coupled with pelvic floor muscle tension. The author’s results illustrate challenging diagnostic screening of the causes of PP in outpatients referred to a neurologist by doctors of various specialties. The author concludes that PP should be considered an interdisciplinary phenomenon. Familiarizing with the causes of PP and pain patterns of various pathological conditions affecting pelvic organs allows for the rapid selection of adequate diagnostic algorithms. KEYWORDS: propaedeutics, differential diagnosis, pelvic pain, chronic tension pelvic pain, dysfunctional pain, nociceptive pain. FOR CITATION: Izvozchikov S.B. Propaedeutics of pelvic pain. Russian Medical Inquiry. 2021;5(10):694–698 (in Russ.). DOI: 10.32364/2587- 6821-2021-5-10-694-698.