Kidney deficiency in children is divided into kidney qi deficiency, kidney yin deficiency, kidney yang deficiency, etc. Kidney qi deficiency is manifested as growth retardation, etc. Kidney yang deficiency is manifested as cold form (cold body), cold limbs, etc. Kidney yin deficiency is manifested as five heart heat (heat in the heart of the two hands and the heart of the two feet, and self-consciousness of the heart and chest heat), etc. 1. Kidney qi deficiency: mainly manifested as retarded growth and development of children, spontaneous sweating (involuntary sweating during the day, aggravated by the slightest movement of sweating), bedwetting, thinning and yellowing of hair, fatigue and tiredness, and delayed change of teeth and other conditions. 2. Kidney yin deficiency: mainly manifested as growth retardation, night sweating (abnormal sweating after going to sleep and stopping sweating after waking up), dry mouth and thirst, warmth in the palms of the hands and the hearts of the feet, dizziness and tinnitus. 3. Kidney yang deficiency: the main manifestations are growth retardation, fear of cold limbs (fear of cold, cold limbs), nocturnal urination, cold limbs, body swelling, enuresis, lack of concentration and so on. If a child shows signs of kidney deficiency, consult a clinician and take medication as prescribed.