Body fat may lead to kidney yin deficiency, but according to the actual symptoms, not all fat people will be kidney yin deficiency. Fat people more phlegm, phlegm for the tangible evil, will block the body’s qi and water operation, which leads to qi, blood and fluid can not run normally, the five organs can not get qi and blood moistening, kidney yin no biochemical source and lead to kidney yin deficiency. Kidney yin deficiency can also lead to obesity, because of kidney yin deficiency, internal heat deficiency will make the water transportation and transformation is not normal, the poor operation of the water will be phlegm and dampness, easy to lead to obesity. Therefore, body fat and kidney yin deficiency is a certain relationship, body fat people should change their lifestyle, healthy diet, increase physical exercise, weight control. If obese people have kidney yin deficiency symptoms, should go to the hospital in time, early formal treatment, so as not to delay the condition.