The role and efficacy of urea

"Urea is an osmotic dehydration diuretic. Physiologically, its main function is to increase the osmotic pressure of plasma, causing water in tissues, especially eyes, brain, cerebrospinal fluid, etc., to enter blood vessels, thus reducing tissue edema, and then reducing intraocular pressure, intracranial pressure, and cerebrospinal fluid volume and pressure. Clinically, the treatment of cerebral edema and glaucoma is mainly applied, but if the patient shows intracranial active bleeding or intracranial hematoma, this situation must be strictly prohibited.