Numbness of the palm of the hand in children may be caused by improper posture, peripheral neuritis, lack of micronutrients and other reasons. 1. Improper posture: due to improper posture can lead to the palm of the hand pressure, so that the localization of a short period of time of poor blood flow, there may be numbness of the palm of the phenomenon. 2. Peripheral neuritis: due to the repeated stimulating effect of inflammation, it may cause numbness of the palm. 3. Lack of nutrients: If children have picky eating, partiality and other bad eating habits caused by diet imbalance, may lead to the body lack of calcium and other nutrients caused by the symptoms of palm numbness. Palm numbness phenomenon for a long time does not relieve or recurring, need to go to the hospital in time to clarify the cause, such as the need for treatment, should be standardized under the guidance of the doctor.