Sacral agenesis

Below you will find more information about Sacral agenesis from Medigest. If you believe that you are suffering from any of the symptoms of Sacral agenesis it is important that you obtain an accurate diagnosis from a medical professional to ensure that you obtain the correct medication or treatment for your condition. There are medical conditions that carry similar symptoms associated with Sacral agenesis and therefore the information provided by Medigest is offered as a guideline only and should never be used in preference to seeking professional medical advice. The information relating to Sacral agenesis comes from a third party source and Medigest will not be held liable for any inaccuracies relating to the information shown.


Sacral agenesis, also known as hypoplasia of the sacrum or caudal regression syndrome, is a rather obscure and extremely rare congenital condition characterized by spinal deformity in the sacrum (i.e. the spine's caudal partition). It affects an estimated one in 15,000 births.

Symptoms and Signs

Affected patients have weak motor function in the area below the normal portion of the spine, as well as impaired sensory function below the level of the affected vertebrae. In its most severe form, sacral genesis can lead to a partial or complete absence of the lumbar spine and even the lower thoracic spine. If severe, the disease is commonly referred to as lumbosacral agenesis.


Sacral agenesis is linked to a number of factors that occur approximately during the third to seventh week of fetal development. By the fourth week of development, the formation of the sacrum (lower back) and corresponding nervous system are usually nearing completion. Factors that facilitate this process are believed to trigger this congenital condition. However, the exact etiology of sacral agenesis remains unknown. It has been speculated that deficiencies in the mother's diet during her pregnancy as well as maternal diabetes are risk factors for sacral genesis in infants. Other less common risk factors have also been enumerated, including exposure to certain organic solvents during the early stage of pregnancy.

Discuss Sacral agenesis in our forums

Discuss Sacral agenesis with other members of Medigest in our forums.