Urine specific gravity is high

Urine is the excess water excreted by the human body and the useless products of metabolism. It can also reflect the health status of the human body. The specific gravity of urine is one of the measurements. People can understand whether the kidney function in the human body is good based on the value of urine specific gravity. Some people will find that their urine specific gravity is high when checking it. So what is the reason for the high urine specific gravity?

Urine specific gravity refers to the ratio of the weight of urine to the same volume of pure water at 4°C. It depends on the concentration of dissolved substances in the urine and is proportional to the total solid content. Urine specific gravity measurement, expressed as SG, is characterized by a gradient of 0.005, with a minimum of 1.000 and a maximum of 1.030. Urine specific gravity, measured with a hydrometer or refractometer, can have a variety of measurements. The determination of urine specific gravity is useful for understanding the concentrating and diluting functions of the kidneys.

The urine specific gravity of a normal person may fluctuate greatly due to differences in diet and drinking, sweating and urination, but it should generally be between 1.010 and 1.025, and may fluctuate between 1.003 and 1.030 depending on various circumstances. For example, drinking a lot of water can reduce the urine specific gravity to 1.003, while drinking less water and sweating more can increase the urine specific gravity to above 1.030. In addition, the urine specific gravity of infants is usually lower than that of adults. In pathological cases, it may increase due to the presence of more protein, glucose, ketone bodies and various cells in the urine.

Urine specific gravity measurement is used to estimate the concentrating function of the kidneys, but it is not accurate and is affected by many factors. The measured values ​​are for reference only.

Urine specific gravity measurement is used to estimate the concentrating function of the kidneys, but it is not accurate and is affected by many factors. The measured values ​​are for reference only. The 24-hour urine specific gravity of a healthy person is between 1.010 and 1.025. The high and low specific gravity is related to the amount of water intake. The more water intake, the lower the urine specific gravity. For a healthy person, the specific gravity of the first morning urine after a night of abstinence from water should be greater than or equal to 1.018. Oliguria with a urine specific gravity below 1.014 indicates loss of renal concentrating function and may be renal failure.

The specific gravity of urine is related to the amount of water you drink and the urine value at that time, and mainly depends on the concentrating function of the kidneys.

Increased: seen in dehydration, diabetes, acute nephritis, etc.

High urine specific gravity is usually due to food factors. You should drink more water. If it persists, you should consider high blood pressure and signs of renal artery sclerosis.