At present, the standard deviation method and height percentile method are used clinically to determine short stature, that is, a child whose height is lower than the 3rd percentile or two standard deviations of the normal child height standard for the same age, sex, region and ethnicity can be diagnosed as dwarfism.
To determine your child is short or slow growth can refer to the following formula: 1. You can calculate according to the formula: age x 7 + 70 (cm), if your child’s height is 10 cm below this calculation result can be judged.
2, growth rate, that is, the annual height growth value (cm / year), height growth rate is lower than the normal rate of the corresponding age children need to be further examined. 2 years of age, the annual growth rate <7cm; 4.5 years to the beginning of puberty, the annual growth rate <5cm; puberty, the annual growth rate <6cm. Growth curve chart can visually see the child's height, parents can refer to it. The yellow part is the median, height within -2SD is normal, if height is lower than -2SD is dwarfism, need to consult and do related examination to confirm the diagnosis. The horizontal coordinate of this graph is the actual age and the vertical coordinate is the height cm value. Parents can contact me by phone if they have any other questions.