When people with poor kidney qi urinate, there may be a lot of white foam in the urine, which will not disappear for a long time, and the urine volume will suddenly increase or decrease sharply, with frequent urgency, abnormal color such as red, brown and dark yellow, and pungent smell when nocturia occurs. They always feel thirsty, want to keep drinking water, and feel weak and painful when urinating. Kidney is an important organ of human urinary system. When our kidneys have health problems, there will be many abnormalities when urinating. Renal function is impaired, which leads to the failure of glomeruli and renal tubules to work normally, and the protein in urine can not be reabsorbed and digested, resulting in a large number of white foam in urine, which lasts for a long time. When the kidney has problems, it is not only the dysfunction of the urinary system, but also other negative effects on the body. For example, the body has inexplicable edema. In the case of adequate sleep, the body is prone to fatigue, long-term anemia, loss of appetite, decreased vision, decreased resistance, easy to catch a cold and get sick, black eyes, nose and ears, and white hair. Renal function is damaged, which leads to insufficient kidney qi in the body and the hair can not be nourished, so there will be a lot of symptoms of hair loss and white hair. So how should we maintain and care for our kidneys in our lives? First of all, we must adjust our diet. Eat more black food. Black food is rich in zinc ions, which contributes to the recovery of renal function. Eat more fresh vegetables and fruits to supplement your body with enough trace elements, and the food should be light. Excessive salt intake can lead to muscle atrophy of kidney and spleen. In addition, it is worth noting that don't eat too many animal kidneys. Many people agree with the complementary principle. In fact, the kidneys of animals are rich in cholesterol and protein, which can easily lead to the accumulation of toxins in the kidneys. Therefore, animal kidneys contain heavy metal cadmium, and excessive use of animal kidneys will affect the health of human kidneys. In addition, we can drink more health tea, such as wolfberry tea. Secondly, pay attention to urination and don't hold your urine. Holding urine will lead to an increase in bacteria and bring health hazards to the bladder. The kidneys are warm and cold, so you must protect your body in your daily life, keep warm, and don't be greedy.