Kidney deficiency is a TCM term. First of all, the kidney is dominated by the waist, so the first thing is backache or weakness of the waist and legs; In addition, the kidney dominates the bone and produces marrow, so there is joint weakness and osteoporosis. There is also the main brain that produces marrow, so it is often memory, brain dysfunction and sleep disorder.

In addition, the kidney controls reproductive development, so there will be developmental retardation or premature aging; In addition, the kidney governs water, and patients may have abnormal water metabolism, abnormal urine, edema or dysuria or abnormal urine function; In addition, the kidney is also the main kidney. For example, if the child has kidney deficiency, then the patient's kidney is relatively short.

Therefore, the symptoms of kidney deficiency are varied, and patients may show yin deficiency or yang deficiency. If it is kidney yin deficiency, it is generally manifested as dry mouth, accompanied by hot flashes and night sweats; Then yang deficiency is manifested as a symptom of being afraid of cold, that is, in addition to the weakness of the waist and knees, there are also symptoms such as being afraid of cold. Therefore, there is kidney deficiency with various symptoms.