Teddy dog ​​chin trembling may be caused by calcium deficiency, poisoning, encephalitis, canine distemper, epilepsy and other reasons. It is best to take the dog to the hospital for examination to avoid delaying the condition. Pay attention to supplementing the dog's nutrition, especially calcium and trace elements. Do not feed the dog random human food to avoid food poisoning. If any abnormality is found, send it to the hospital for rescue treatment in time.