Hyperproteinemia is an increase in the concentration of total protein in the blood plasma of more than 84 g / l. This condition can develop due to a wide range of reasons - from excessive sweating and pregnancy to various inflammatory diseases and malignant neoplasms. In itself, a high protein content has no clinical signs, with the exception of monoclonal gammopathy, in which hyperproteinemia is a key pathogenetic link in the hyperviscosity syndrome (GBS). The protein level is examined in plasma on an empty stomach. To correct this disorder, therapy of the underlying disease is necessary.