Back like ants crawling may be autonomic disorder, multiple peripheral neuritis and other diseases, may also be due to cold and other stimuli. 1. Autonomic nerve disorder: the cause may be related to psychosocial, mental, genetic and other factors. Patients may experience symptoms such as dizziness, blurred vision, generalized wandering pain, etc. Some patients may also experience a condition like ants crawling on their back. 2. Multiple peripheral neuritis: the cause may be related to chemical factors, nutritional disorders, immune factors and other reasons. Patients may have symptoms such as pinprick sensation, ant walking sensation and tenderness locally, which often gradually expand from the extremity to the proximal end, and ant crawling sensation may also appear on the back. 3. Cold stimulation: when the back is stimulated by cold, it can lead to abnormal sensation of the dermal nerves of the back and the symptoms of ants crawling. If you have ants crawling on your back, it is recommended that you go to a regular hospital to find out the cause of the disease and get timely treatment.