Microneedle is a minimally invasive procedure that uses a surgical instrument, the needle knife, to extensively peel and loosen the patient’s lesions. If the nerve is damaged during the treatment process, symptoms such as numbness, radiating pain, motor and sensory impairment may occur, which can generally be combined with symptoms as well as examination results to help determine: I. Symptoms: 1. Minute nerve injury: patients have a slight scurrying numbness, or sensory loss at the site of their damage, such patients may usually be the knife cut touches the tiny nerve, and the corresponding part in their Micro nerve injury; 2, nerve root cut injury: some patients suffer injury, in the injury site outside the site also followed by extremely strong tingling and radioactive pain, and even the patient’s upper or lower limbs will also appear obvious twitching. At this time may be due to the nerve root was cut, and caused by the situation; 3, nerve stem injury: there is a class of patients in the injury site and its more distant areas, a series of motor disorders and sensory disorders. This situation often indicates that the nerve trunk may have been damaged, should be promptly consulted for medical treatment. Second, the examination: general doctors will do specific physical examination actions, according to the nerve reflexes to determine whether there is nerve damage, in addition to electromyography to determine whether there is nerve damage. If you feel uncomfortable after small acupuncture, it is recommended to go to the hospital in time for consultation and treatment, according to the location of the small acupuncture and the actual situation of the patient, follow the medical advice for symptomatic treatment, if it is relatively mild, you can use some nerve-nourishing drugs, or local acupuncture to improve. If the situation is more serious, rehabilitation training can be carried out under the guidance of a doctor, and if necessary, nerve repair surgery can be performed by a professional physician for treatment.