What is pain? Pain is an unpleasant sensory and emotional experience that occurs when the body is damaged, and is a complex set of pathological and physiological changes in the clinical manifestations, pain can be localized, but also can be a reflection of systemic diseases. Pain can be localized, or it can be a reflection of systemic diseases. We refer to diseases with “pain” as the main symptom as “pain syndrome”. What kind of pain do we face in our daily life? In our daily life and work, pain often occurs due to collision, sprain and other types of trauma, and also occurs when we are unknowingly exposed to cold, dampness, overwork and long-term inappropriate work position, in addition, inflammation or tumor and other lesions in various systems and organs of the body can produce varying degrees of pain. From the course of the disease, pain can be divided into acute pain and chronic pain, from the part of the body can be divided into headache, neck and shoulder pain, chest and abdominal pain, lumbar and leg pain, etc., and from the source of pain can be divided into soft tissue pain, arthralgia, neuralgia, etc., and most of the pain caused by the reasons mentioned above can be relieved or relieved in the pain clinic. Because the causes of pain and pain itself are very complex, it must be within a certain period of time to the specialist physician can be divided into categories and make a relatively clear diagnosis, and then only to the right medicine. Overall, the pain that bothers people, there are generally the following seven, respectively, neck and shoulder pain, low back pain, cancer pain, intractable headache, trigeminal neuralgia, post-herpetic pain, and joint pain in the limbs, we call these seven types of pain, the “seven deadly sins”: (1) Neck and shoulder pain Neck and shoulder pain is due to the cervical vertebrae and the surrounding soft tissues in a state of tension for a long period of time, or the nerve root compression of the lack of blood supply locally, affecting the tissues and muscles and blood circulation, making the shoulder and neck tissues and blood circulation. Blood circulation, so that the shoulder and neck tissue inflammation and edema, this disease occurs in the long-term ambulatory work of office workers, computer workers, car clothing workers and so on. (2) Low back pain Most of the low back pain is caused by muscle contracture, trauma or spinal deformation, but about 1 in 10 patients is caused by systemic diseases. Low back pain may appear anywhere in the back from the neck to the lumbar region, and may be in a small portion of the body or spread over a large area. (3) Intractable headache Intractable headache is a condition caused by intracranial inflammation, hypoxia, hemorrhage, tumors, mechanical injury, cranial nerves, paranasal sinus pathology, and other neurological and psychiatric factors. In the case of intractable headache, at present, in addition to treating the cause of the condition, it is also necessary to eliminate the pain through a variety of auxiliary means. (4) Trigeminal neuralgia Trigeminal neuralgia, also known as “pain spasms”, is the most typical neuralgia involving the face limited to the trigeminal nerve or several branches of the distribution of recurrent transient and severe pain. Its etiology and pathology have not been fully studied, so the treatment should be aimed at analgesia and elimination of symptoms. (5) Postherpetic neuralgia Postherpetic neuralgia refers to the sequelae of persistent pain for more than one month after the clinical cure of herpes zoster, which is caused by herpes zoster mismanagement, mismanagement, and the patient’s own immunity decreasing, so that the viruses retained in the body erode and destroy the nerves. The treatment of postherpetic neuralgia mainly focuses on relieving pain, improving sleep, and improving quality of life. For milder postherpetic neuralgia, we strive to promote its full recovery. (6) Cancer pain: Cancer pain is caused by malignant tumors destroying the tissues of the patient’s body and stimulating the pain caused by nerve endings, which is mostly found in the middle and late-stage patients. The degree of cancer pain is not only related to the damage of the tumor itself to the body, but also has a close relationship with the patient’s psychological state. (7) Arthralgia of limbs refers to the limited pain in a certain place of individual limbs, which is mostly caused by local diseases; it can also be the induction pain or radiating pain of proximal parts of the disease, or the early symptom of systemic diseases. The most common limb pain for tennis elbow, Achilles tendon pain, etc., mostly seen in athletes, fashionable women, often use the computer work of white-collar workers. If the pain is divided into ten points, zero is no pain at all, ten points is unbearable pain, then, if the degree of pain is seven points or more will affect sleep, need to use special means of treatment; if the impact of daily life is between four and seven points, need to pay attention to, in addition to symptomatic treatment, but also try to get rid of the causes of pain; if four points or less, and a clear reason for the need to Actively treat the primary disease, so that the pain does not aggravate or even affect the normal work and life. Although many people have had this or that kind of pain experience, but for a long time people’s attention to the degree of pain and the danger of awareness is far from enough. Many patients hold an attitude of “tolerating” the pain and it will pass. Research has found that persistent chronic pain will lead to dysfunction of various body systems, low immunity, and cause a variety of complications. This seriously affects the patient’s quality of life and work efficiency. When pain incapacitates a person’s ability to work and thus puts the independence of personality at risk, the patient will feel the joy and meaning of life, which can lead to family breakup, suicide and even jeopardize society. Therefore, when symptoms of pain appear, the cause should be identified in time at the hospital. Pain treatment is preceded by a rigorous physical examination of the pain. For pain that can identify the cause, we need to treat the symptoms, and for persistent, or unknown cause of pain, mainly to eliminate the symptoms of the main, common physical examination tools such as X-ray, CT, MRI, etc., and for some hysteria or can not be clear about the specific location of the pain, the use of infrared thermography and other high-tech means to diagnose. The purpose of the physical examination is to clarify the cause of the disease, eliminate interfering factors, and avoid the possibility of treating the symptoms but not the root cause.