Etiology of decreased urine specific gravity

Urine specific gravity is the ratio of weight to the same volume of water at 4 degrees Celsius. It is an indicator of the concentration of solutes contained in urine. The decrease of urine specific gravity means that the ratio of the weight of the same volume of water is reduced, which is usually related to some diseases related to the decrease of urine specific gravity, the following is the cause of the decrease of urine specific gravity to the introduction. 1, chronic nephritis is a group of multi-causal chronic glomerulopathy-based glomerular diseases, chronic nephritis patients a typical specific is prone to urine specific gravity drop. It may be due to various bacterial, viral or protozoal infections through immune mechanisms, inflammatory mediators and non-immune mechanisms that cause a decrease in urine specific gravity. 2.Urinary avalanche Urogynecology can trigger a decrease in urine specific gravity, which occurs in the hypothalamus or pituitary gland neoplastic or invasive damage, including: suspicion pheochromocytoma, craniopharyngioma, embryonal tumor, pineal tumor, glioma, meningioma, metastasis, leukemia, histiocytosis, sarcoma-like tumor, yellow tumor, nodular disease and infectious diseases of the brain.

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