Umbilical fire therapy is a traditional Chinese medicine therapy, which stimulates Shenque point by applying negative pressure and temperature through traditional Chinese medicine ointment and waxed paper, so as to warm yang, save inverse and enhance immunity. Shenque point is located around the navel and is considered as one of the important energy gathering points of the human body. According to the theory of traditional Chinese medicine, yang deficiency or weakness will lead to imbalance between yin and yang, thus affecting health and immunity. Umbilical fire therapy can promote the circulation of qi and blood, adjust the balance of yin and yang, and enhance human yang, thus improving immunity and resistance. However, there is not enough scientific evidence to support the curative effect of umbilical fire therapy in modern medicine. Although some people claim that umbilical fire therapy has a positive effect on them, it is because of individual differences, psychological hints or other factors.