Six months baby shivering and trembling, may be caused by physiological factors, as well as calcium deficiency, brain diseases and other pathological factors. 1. physiological factors: six months baby perception organs are more developed, more curious about all kinds of things, the baby will be more active, may produce shivering and trembling; when the six months baby by the cold stimulation of skeletal muscle contraction, will also be manifested as shivering and trembling. 2. Pathological factors: if the six-month-old baby calcium deficiency may lead to the emergence of hand and foot muscle twitching, convulsions and other neuromuscular excitability increased symptoms, that is, shivering and trembling. Cerebral palsy, epilepsy and other brain diseases may also make the six-month-old baby appear shivering and trembling symptoms. Six-month-old babies shivering and trembling, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.