Children with cold hands and feet and body heat may be caused by infection, insufficient blood supply and abnormal neural regulation. 1. Infection: If the child’s body is invaded by bacteria or viruses, it is also easy to cause body heat and cold hands and feet due to the immune response in the body. 2. Insufficient blood supply: If the child’s body has poor blood circulation, resulting in insufficient blood supply to the limbs, it is also easy to have cold hands and feet, but the original disease causes the body to be hot. 3. abnormal nerve regulation: because the body of a small child is still in the development period, the body of the nerve development may not be complete, if the control of vascular circulation of the nerve function is abnormal, may also make the body fever, and if the limb vascular spasm, contraction phenomenon, will also make the limbs cold. The child’s hands and feet are cold, the body fever, there may also be other reasons, such as the environment temperature is too low, or insufficient calorie intake. It is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.