Feeling something crawling on the head, mainly consider the following causes: 1. For young patients, if there is a feeling of insects crawling on the head, ask the patient whether there is a sleep disorder, whether there is chronic sleep deprivation, early awakening or excessive dreaming, whether there is a mood disorder, anxiety, excessive worry or depression, as well as laziness about anything, no unfixed pain or numbness elsewhere in the torso , or insect crawling sensations. If you feel something crawling on your head, if you are an elderly patient, ask if you have any risk factors for cerebrovascular disease, such as hypertension, diabetes, or if you have been smoking or drinking alcohol for a long time. In this case, a cranial MRI is needed to find out whether there is infarction in the thalamus, because if there is infarction or lesion in the thalamus, it is easy to cause sensory disturbance and crawling feeling.