Early symptoms of rickets — Rickets mostly occurs in the time period from about one hundred days to before the age of three, early intervention in rickets can completely avoid adverse consequences, so as parents have to know some early symptoms, the following is an introduction to the early symptoms of rickets. Rickets symptoms: 1, newborn babies show significantly shorter limbs, the head is larger than normal, the forehead is clearly prominent. 2, there are more obvious behavioral abnormalities, such as sleep is always restless, easy to cry, often sweating, due to excessive sweating, the head will be more itchy, the baby will rub his head against the pillow, will appear more obvious phenomenon of pillow baldness. 3. As the condition develops and the child grows older, abnormalities in the chest bones will appear, with the middle part bulging outward or concave inward. When the child walks or stands after the age of one, the legs will have the condition of o-shaped legs. 5.The child will have late tooth opening due to calcium deficiency. 6, facial expression indifference, less expression, late speech, slow response to external stimuli. Prevention of rickets: 1, the prevention of rickets should take comprehensive measures, such as reasonable feeding, strengthening physical exercise, more sunshine, etc.. The most effective and simple method is sunbathing. The right amount of ultraviolet light not only enables the skin to produce vitamin D, helping children to absorb calcium and phosphorus, so that the bones grow strong, but also active systemic functions, stimulating the bone marrow to produce red blood cells, to prevent anemia. At the same time, ultraviolet light has a sterilizing effect. The best time for daily sunbathing is after 9:00 am and before 4-5:00 pm. No less than 2 hours per day. In summer, it should be in the shade, avoiding direct sunlight. But don’t sunbathe across the glass, because glass, soot, clothing can block ultraviolet light through, so receive sunlight exposure, try to make the skin more exposed to the sun. The prevention of rickets should start from the perinatal period, with the focus on children within one year of age, and should be managed systematically until the age of three, i.e. to grasp early, small and thorough. Extensive publicity and education should be carried out so that mothers can learn the relevant knowledge. During the neonatal period, strengthen care, promote breastfeeding, and start sunbathing as early as possible. 3, the prevention of infancy and early childhood: this period of rapid growth and development, more prone to rickets, must adhere to the comprehensive preventive measures. Promote breastfeeding, add complementary foods in a timely manner to ensure that the child’s needs for various nutrients. For weak children or in the winter and spring, the application of vitamin D prevention is still an important method. Sunbathing is a simple and effective measure to prevent rickets, and should be widely publicized and promoted. Expose the skin as much as possible and gradually increase the time spent in the sun. The average daily outdoor activity should be more than one hour. For weak children or in winter and spring, the application of vitamin D prevention is still an important method. 4. Late onset rickets can occur during childhood to adolescence. VD prevention methods and doses are the same as those in early childhood. When applying VD prophylaxis, breastfed children can generally be given calcium without additional doses. However, for infants weaned after 6 months of age, artificial feeding, low appetite, excessive growth, adolescent children or those with acute and chronic diseases, appropriate amount of calcium supplements can be given.