Top 5 Symptoms Of Achondroplasia


Achondroplasia Achondroplasia is a medical bone growth disorder that is known to be one of the most significant causes of dwarfism. The literal meaning of the word achondroplasia suggests without any cartilage formation, but this disorder is not related to the non-formation of the cartilage but this bone growth problem develops when a cartilage has problems in converting into a bone.

This problem is observed mostly in the bones of legs and the arms. In this disorder, a person’s legs and arms are considerably shorter in proportion to the length of the body. Also, the head is big and trunk is of a normal size. There are various symptoms that can explain the occurrence of achondroplasia in a person. Some of the common symptoms of Achondroplasia include short stature, long trunk, big head, bowed legs and obesity.

Significant Symptoms Of Achondroplasia

Short Stature

Short stature is one of the most important and obvious symptom of Achondroplasia. A person suffering from this bone growth disorder is known to be short in height. The average height observed in an adult male with this disorder is 131 cm, which is 4 feet 4 inches or 52 inches. Also, the average height that is observed in a female suffering from achondroplasia is noted to be 124 cm or 4 feet and 1 inch or 49 inches. In some cases, adults with achondroplasia are known to be as short as 2 ft 0.7 in.

Small Back Bones

People with achondroplasia are known to have small back bones. This disorder may also cause compressed spinal cord in adolescence. In many cases, children suffering from Achondroplasia often die in their infancy only.

Small Back Bones


Sometimes, children may survive their infancy but succumb to death in their early childhood owing to the compression in the upper part of the spinal cord that causes problems in breathing.

Large Head

The large and prominent head is one of the most significant symptoms of a person with Achondroplasia. You may also notice that people with Achondroplasia would have certain underdeveloped portions of face. However, people in general may also have large head but if the large head is accompanied with short stature and shortened limbs then it can be considered to be a symptom of Achondroplasia.

Shortened Limbs

Shortened limbs are also a significant symptom of Achondroplasia. This symptom gets immediately noticeable at the time of birth of a child who is suffering from this bone growth disorder.

Shortened Limbs


The feet and the hands appear to be large but their fingers or toes would be significantly stubby and short. People with Achondroplasia have short fingers, especially the middle and the ring finger may diverge that gives the hand a trident type of appearance. People with Achondroplasia also have short legs and arms with short thighs and upper arms.

Bowed Leg

Bowed leg is also an important symptom of Achondroplasia. Many times, kids with Achondroplasia at their birth may have straight legs but as they begin to walk, they may develop bowed leg or knock knee deformity, which is known to be a crucial symptom of Achondroplasia.

Photo Credit:

Kasturi Jha