Urine specific gravity is low at 1.005, which depends on the specific analysis of the problem. Normally, the range of urine specific gravity is between 1.010 and 1.030. Low urine specific gravity indicates that there may be abnormalities in the concentration function of the kidneys, which means that the water reabsorbed by the renal tubules is reduced. If you drink a lot of water in a short period of time to form a lot of urine, this condition may lead to low urine specific gravity. If the urine is low in specific gravity after regular diet, it means that the function of the kidneys is somewhat impaired. In this case, we should test the kidney function, we should do the kidney ureteral ultrasound, and we should also make a comprehensive judgment according to whether there are any symptoms.