It is often said that a toothache is not a disease, but a pain that really kills you. Nowadays, many people do not consider pain to be a disease, including many medical professionals who consider it to be a mere symptom. In fact, as early as 2007, the World Health Organization listed pain as the fifth most important vital sign, alongside temperature, pulse, respiration and blood pressure, and pain should be taken seriously enough. In some patients, the pain is caused by the primary disease, and the pain can disappear or be relieved by removing the primary disease, but in some patients, the pain itself is a disease, just like diabetes and hypertension, which require medication all the time. Nowadays, people can accept the idea that hypertension, coronary heart disease, and other diseases need to take medication all year round, but pain is still excluded. Pain is a very complex disease, common tendonitis, tennis elbow, arthritis, cervical spondylosis, lumbar disc herniation, osteoporotic compression fractures and other diseases will involve pain, and many medical and surgical diseases also involve pain, such as multiple myeloma, gastroenteritis, lung cancer and other cancer bone metastases, so our diagnosis and treatment range is very wide, and in the process of our diagnosis and treatment, we often see the situation that Many patients do not feel that pain is a disease and tolerate it when they are uncomfortable, and when they can’t stand it anymore and come to the clinic the disease is already difficult to deal with, some of them have herniated disc adhesions, some of them have missed the earliest time for treatment, and some of them have developed metastases. This is why it is important to raise awareness and seize the best time to treat the disease at the early stage of the onset of pain, so as to avoid injuries that could have been avoided.