The main causes of pain at the edge of the palm are related to neurological lesions, trauma, and local skin lesions. 1. Neurological lesions: If there is peripheral nerve injury in the upper limb or cervical spine compression of the nerve root, it can produce abnormal sensory symptoms of radiating pain in the edge of the palm. 2. Trauma: Trauma to the edge of the palm, such as crushing injuries or injuries caused by foreign objects, can directly cause local pain symptoms, and even accompanied by swelling. 3. Local skin lesions: If there are skin lesions on the edge of the palm, such as allergies, bacterial infections or skin inflammation, etc., they will easily stimulate the skin pain receptors directly, thus producing the symptoms of pain on the edge of the palm. If the symptoms of palm edge pain are more serious, pay attention to the medical examination as soon as possible to clarify the cause of the disease, and standardized treatment under the guidance of a professional physician to prevent further aggravation of the symptoms of pain in the later stage. In the process of treatment and recovery, pay attention to diet and eat less stimulating food, so as not to affect the therapeutic effect.