Hypostenuria is a pathological condition characterized by a decrease in the relative density of urine less than 1005 g / ml. A decrease in the specific gravity of urine indicates a violation of the concentration function of the kidneys, which occurs with various nephrological diseases, diabetes insipidus, etc. With hypostenuria, urine has a less intense color, sometimes it can be completely transparent. Relative density is examined in the general analysis of urine. Correction of this laboratory deviation is carried out by treating the underlying disease.