Low specific gravity (SG) (1.001-1.003) may indicate the presence of diabetes insipidus, a disease caused by impaired functioning of antidiuretic hormone (ADH). Low SG also can occur in patients with glomerulonephritis, pyelonephritis, and other renal abnormalities.

What does low specific gravity mean?

In cases of low specific gravity, a person may be drinking too much fluid or have a condition that makes them thirsty. Further testing is often needed to determine if a heart condition, kidney problem, or metabolic disorder is the cause of the abnormal result. Low specific gravity suggests that urine is too diluted.

When specific gravity is high?

Specific gravity results above 1.010 can indicate mild dehydration. The higher the number, the more dehydrated you may be. High urine specific gravity can indicate that you have extra substances in your urine, such as: glucose.