The difference between cancer pain and general pain is mainly in the following aspects: First, cancer pain is mainly due to the role of cancer itself, or the infiltration, invasion and metastasis of tumor cells, which causes pain in the corresponding tissues, organs or parts. General pain may be caused by inflammation, trauma and other factors, resulting in pain in the limbs or internal organs and tissues. Secondly, cancer pain is more persistent and severe pain, especially at night, or pain in distant tissues and organs, which is not effective after medication. General pain can be relieved and cured by medication, acupuncture treatment or herbal treatment. Therefore, the two are obviously different and patients are advised to actively seek medical advice to clarify the diagnosis so as not to delay the condition.