Cervical rib is a term used to describe an additional rib that develops in the lower neck region. Other synonyms for cervical rib include thoracic outlet syndrome, extra rib syndrome, and lower cervical rib. This condition is common and leads to a range of symptoms including arm weakness, numbness, and pain. Cervical rib can lead to serious medical problems, and treatment options include pain medication, surgery, and physical therapy. A proper diagnosis is crucial, and individuals experiencing symptoms should seek medical attention as soon as possible. With proper treatment, individuals with cervical rib can experience relief from their symptoms and an improved quality of life.