In general, a short femur length in babies may lead to short size later in life. Femur length is the length of the femur in the thigh of the fetus and is one of the indicators used to assess the development of the fetus during pregnancy checkups. Short femur length refers to a femur measurement that is more than 3 standard deviations below the average value, and can be caused by genetics, chromosomal abnormalities, dysplasia and other reasons, and it is necessary to determine whether it will lead to short height according to the specific situation. I. It can lead to short and difficult to correct: 1. Genetic factors: short femur length can be due to family genetic factors, because the parents are short, the baby will probably be short after birth, it is recommended to go to the hospital for examination, and drug intervention can be carried out before the baby’s epiphysis closes under the guidance of the doctor; 2. Chromosomal diseases: including 21-trisomy, 18-trisomy, chromosomal deletion etc., there may be physical dysplasia, such babies femur length short may cause short, these diseases are difficult to treat, generally can be detected through prenatal examination, it is recommended to terminate the pregnancy; 3, dysplasia: if the femur length measurement is more than 3 standard deviations below the average, there may be dysplasia, not only can cause femur length short, but also brain and neurological dysfunction, which Pregnant women should do all the examinations and be evaluated by a professional physician to see if they need to terminate the pregnancy. Second, will not lead to short or can be corrected: 1, different body proportions: after examination to exclude the above-mentioned congenital factors, due to the influence of acquired factors, femur length short generally will not affect the size, may be different body proportions, some babies born with short femur, tibiofibular longer, will not lead to short; 2, poor nutrition: early and mid-pregnancy, some pregnant women due to pregnancy vomiting, eating too little and other reasons Poor nutrition, malnutrition, calcium deficiency, etc., may lead to the baby’s slower development and measurement of the short femur length; in addition, if the baby is born with calcium deficiency, may also be short femur length, this situation will generally have sweating, easy to panic, irritability, dullness, hair loss, delayed development and other performance, timely adjustment of diet and calcium supplementation, can be alleviated, if necessary, follow medical advice to use calcium supplements. Improve the problem of short femur length, timely treatment usually will not lead to short height. However, if the baby’s malnutrition is delayed, it may also cause irreversible short stature. If you suspect that your baby’s short femur length is caused by a disease, such as malnutrition, you need to visit a pediatrician or obstetrics and gynecology department in time to avoid irreversible consequences. In addition, there may be errors in the femur measurement and a short femur length, it is recommended to visit the hospital again for a review.