Abnormal spinal MRI signals suggest that there may be lesions in the spine, which need to be analyzed in conjunction with clinical and MRI images, e.g. osteoporosis is often shown as a high signal. MRI is an imaging technique that has two basic types of imaging, T1WI and T2WI, and the black and white shades of gray on an MRI image are signal strengths, with black shadows indicating low or no signal, gray shadows indicating medium signal, and white shadows indicating high signal, which can reflect the normal tissues of the human body and their lesions. If both T1WI and T2WI are high signal, it may suggest osteoporosis, etc. If both T1WI and T2WI are low signal, it may suggest osteoporosis, etc. If T1WI is equal or low signal, and T2WI is equal or high signal, it may suggest bone necrosis, etc. If the results of spinal MRI indicate abnormal signal, it is recommended to consult a doctor in time to clarify the cause of the disease and carry out targeted treatment and therapy.