If there are crystals in the urine, it may be due to the concentration of urine, or it may be due to the increase of some abnormal components in the urine, such as the formation of purine crystals after a long and large intake of purines or oxalate crystals after consuming too much oxalic acid. If the urine is concentrated for a long time, white crystalline deposits can be seen with the naked eye during urination, often in cold weather, but they can disappear after drinking more water. If you don’t pay attention to preventive measures, urinary stones will gradually form over time, so there are crystals in the urine, which means that the urine is in a concentrated state for a long time, at this time if further development will form urinary tract stones. Patients need to drink more water in their daily life, and need to go to the hospital for relevant laboratory tests to understand the pH of the urine, and need to give timely interventional treatment, such as taking sodium potassium bicarbonate pellets or sodium bicarbonate to alkalize the urine treatment.