The correct term for the chances of having a Down’s syndrome baby with a short nasal bone is the chances of having a Down’s syndrome baby with a short nasal bone, and there is no organization that specializes in short nasal bones to determine the exact chances of having a Down’s syndrome baby. Nasal bone shortening is a common symptom of Down syndrome, but please note that if short nasal bone shortening is detected during the examination, it does not guarantee that it is Down syndrome. If the nasal bone is short, further DNA testing can be performed; in fact, genetic testing is the most effective way to screen for Down syndrome. Fetal chromosomes need to be examined to determine if there is a chromosomal abnormality when a short nasal bone is found. Broken nasal bone and missing nasal bone are soft indicators of fetal chromosomal abnormality, indirectly suggesting that there may be chromosomal abnormality. If a short fetal nasal bone is found through ultrasound, genetic counseling can be used to determine whether amniocentesis and other tests are needed to determine the chromosomal status of the fetus. It should be noted that a short nasal bone may occur in 0.5% of normal children or 40% of Down’s children, and does not necessarily mean that the fetus is malformed. It is recommended that this be clarified through examination, and if abnormal, treatment should be in accordance with medical advice.