Heel pain is not necessarily caused by kidney deficiency. Depending on different clinical medical theories, Chinese medicine may consider it to be a sign of kidney deficiency; Western medicine may consider it to be caused by other diseases, such as heel bone osteophytes, Achilles tendonitis, osteoarthritis, etc. In terms of Chinese medicine, kidney deficiency does cause heel pain, because the kidney is the master of bone, but not all heel pain can be diagnosed as kidney deficiency. For example, the heel part of the osteophytes, bone spurs appear; heel local inflammatory stimulation or improper force during daily activities, often wear high heels, so that the Achilles tendon area muscle or joint stimulation, aseptic inflammation, will also be manifested as pain. There is also pain when the heel is locally cooled. In daily life, you should develop good foot hygiene habits and insist on soaking your feet in warm water every day to keep your local area clean and hygienic, which will help your foot health. Whether it is caused by kidney deficiency needs to be clarified after diagnosis by an herbalist.