There’s a commonly held falsehood that men have actually one less rib than women. This legend may have its root in the Bible and the production story around Eve being made from among Adam’s ribs.

This legend is precisely that: one unproven, untrue belief. The no longer hosted as truth by religious leaders of any type of denomination.


The vast majority of human being are born through 12 bag of ribs, for a complete of 24, no issue their sex.

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The exemption to this anatomy dominion are world born with certain genetic anomalies. These can take the form of too countless ribs (supernumerary ribs) or too couple of (agenesis that ribs).


Cervical rib

Cervical rib is a genetic mutation which reasons some world to be born with one or two extra ribs between the base of the neck and the collarbone.

People born with this problem may have one extra rib on either side, or one extra rib ~ above both sides. These ribs might be completely formed bones, or they might be tissue fiber strands the don’t contain any kind of bone.

Cervical rib is a problem that can affect any sex.

Many civilization who have actually this problem don’t have any symptoms and also are unaware that they have it. Others endure discomfort, such together neck ache or numbness, resulted in by the cervical rib pushing down top top nerve end or blood vessels.

Cervical rib may result in a condition called thoracic outlet syndrome (TOS). TOS typically shows up in adulthood and also may affect much more men 보다 women. No everyone who has cervical rib will build TOS.

Trisomy 21 (Down syndrome)

Down syndrome is a chromosomal disorder. Human being born through Down syndrome sometimes have an extra rib, or a lacking 12th rib. No everyone who has actually Down syndrome has actually rib number variations.

Spondylocostal dysplasia

This rare, autosomal recessive disorder is likewise known together spondylocostal dysostosis. It requires an abnormal breakthrough of the ribs and spine. In enhancement to scoliosis and also fused or misshapen vertebrae, people born v this condition may have ribs that room fused together, or lacking entirely.

Spondylothoracic dysplasia

Spondylothoracic dysplasia is an autosomal recessive condition. It’s likewise known as spondylothoracic dysostosis. Babies born through this condition have fused ribs and fused vertebrae. They likewise have very small chest cavities, i beg your pardon can cause severe problems with breathing.

Goldenhar syndrome (oculo-auriculo-vertebral spectrum)

Goldenhar syndrome is a rare congenital problem that causes anomalies to occur in the spine, ears, and eyes.

Babies born v Goldenhar syndrome may have actually one or two partially created or missing ears, and also benign eye growths. Castle may additionally have one underdeveloped jaw and cheekbone, and also ribs that space missing, fused, or not totally formed.


Rib abnormalities don’t should be treated unless they reason problems, such as abnormal growth patterns, troubles with breathing, or pain.

Some rib deformities may be picked up via ultrasound, prior to your baby is born. Others might become evident after birth, if your baby has actually a smaller sized chest size, or displays difficulty with breathing. If so, therapy will focus on respiratory tract support.

Missing ribs are occasionally corrected surgically v a machine called a upright expandable prosthetic titanium rib (VEPTR). VEPTRs can be changed in size as your child grows.

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Spinal problems such together scoliosis may be cure surgically or through a brace.

If there are no troubles with posture, breathing, or walking, watchful waiting may be all the is required.

Adults with cervical ribs who start to suffer symptoms connected with TOS may have their extra rib or ribs operation removed.