In neurology clinics, we often encounter patients who come in with numbness in their limbs. They often ask similar questions: “Doctor, do I have cervical spondylosis?” Or “Am I having a stroke?” Numbness in the limbs is one of the most common complaints of neurology outpatients, and many patients and a significant portion of the medical staff have little understanding of the causes of numbness in the limbs. The following are some of my views on limb numbness, for reference only. 1, to understand the causes of limb numbness: there are many causes of limb numbness, in general, can be divided into 2 categories: functional (neuropsychological factors); organic such as cervical spondylosis, stroke, peripheral neuropathy, drug side effects, etc.. 2, to understand the distribution of limb numbness and the relationship between the disease: this is very important, so that you can take a detour when consulting. Usually: (1) wandering numbness is mostly functional factors; (2) partial numbness suggests intracerebral diseases such as stroke, tumors, etc.; (3) numbness of a single limb in line with the distribution of nerves suggests cervical spondylosis or lumbar spondylosis; (4) bilateral numbness of the fingers, especially in middle-aged women, often suggests carpal tunnel syndrome (note a detail: the little finger usually does not feel numb); (5) symmetrical numbness of the ends of the limbs suggests peripheral neuropathy (many causes). 3, numbness of the limbs to consult notes: to go to the relevant departments; consultation should not induce the doctor is suffering from cervical spondylosis or stroke and other diseases, because the irresponsible doctor will often meet your “diagnostic requirements”, responsible doctors are “very cold” to such questions. “. Some tests should be done to clarify the nature of the numbness, such as blood tests (routine blood, blood sugar, lipids, liver and kidney function, etc.), electromyography (a very reliable test), and depending on the situation, a CT/MRI of the head or neck.