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A review of the literature is presented, including data on the incidence, pathophysiology, and clinical picture of patients with chronic compartment syndrome (CCS) of the lower extremities. Chronic exercise compartment syndrome (CECS) is characterized by pain with repetitive exertion and increased intracompartmental pressure affecting the lower extremities in physically active patients. In severe chronic venous insufficiency of the lower extremities, chronic venous compartment syndrome (CVCS) develops, which is fundamentally different from previously known clinical pictures. Progressive dermatolipofasciosclerosis and cicatricial destruction of the fascia of the leg in patients with C4b-C6 clinical classes according to CEAP affect the pressure in the muscle-fascial compartments at each step. In severe cases, this leads to significant changes in the muscles, accompanied by chronic ischemia associated with necrosis and glycogen deficiency. The analysis of various diagnostic methods, conservative treatment and methods for performing surgical decompression of the CCS was carried out. The lack of a clear pathophysiology for CECS and CVCS complicates the diagnosis and treatment of this condition. Diagnosis of calf CCS is still based on pressure testing in the musculofascial compartments of the calf using the Pedowitz criteria, however standard procedures for this, including patient position, static or dynamic movements, muscles and equipment tested, are not agreed upon. In patients with CCS, if conservative treatment is ineffective, fasciotomy of the affected parts of the lower leg is the method of choice. Various techniques for fasciotomy of the lower leg include the traditional open fasciotomy, the semi-closed technique with one or more incisions, the minimally invasive technique using endoscopic compartment release, and the use of ultrasound guidance. Fasciectomy of the lower leg to correct CVCS is performed mainly for recurrence of trophic ulcers after shave therapy, severe calcification of the lower leg tissues and for the treatment of deep transfascial necrosis. Randomized, blinded, controlled trials are needed to further expand our knowledge of the diagnosis and treatment of CCS.