Many parents worry, that their children are too short or thin. Some children, naturally, are lower than of medium height as a result of hereditary or another factors; serious growth imbalance, influencing the general health state are infrequent. To avoid any worries, it is better to write down all the information about your child's growth and weight, so you will be sure that he grows up proportionally (Look alignment chart of physical development). Address to this diagnostic scheme only if your child's weight increases much slower, than his growth, or if he doesn't grow up normally.