The heart is an internal organ, and internal organs have internal innervation nerves, but not a single nerve innervation, and other parts are also innervated by that nerve when innervating the heart, so heart disease pain will have involvement pain. Angina can manifest as pain radiating from the back of the shoulder, the back, or even the throat, and sometimes as chest tightness or chest pain combined with toothache. If there is chest pain combined with back pain, the chest pain may be a manifestation of heart disease, and the back pain may be a back strain combined with frozen shoulder or spine disease, etc. This is to be differentiated by communication between the orthopedic surgeon and cardiologist, and other medical histories need to be pursued, such as whether there is a relationship with posture or physical activity, which needs to be differentiated to clarify whether it is radiating pain, or true shoulder and back or low back pain.