The danger of increased urine specific gravity mainly depends on what exactly causes the increased urine specific gravity: First, if the increased urine specific gravity is caused by drinking too little water and sweating more, it is especially good for this kind of patients with summer heat stroke, and this condition, if not corrected in time, can lead to heat cramps and even pyrexia, resulting in the death of the patient. Therefore, for patients with this type of increased urine specific gravity, it is important to promptly replenish fluids to correct the patient’s urine specific gravity. Second, it is often seen in cases where the concentration of solutes in the urine is too high, such as diabetic ketoacidosis, when the patient has an increased specific gravity of urine. At this time, patients can also die if they are not treated with active rehydration, which is more harmful. Third, more protein in the urine will lead to an increase in urine specific gravity, and if for persistent proteinuria, patients will have renal impairment, as well as a higher risk of thrombosis or embolism, and some patients may even develop acute renal failure.