The exact cause of torticollis is often unknown.
Congenital muscular torticollis is a condition you are born with. It's more likely to happen in firstborn children. This may also be accompanied by a congenital hip dislocation. The cause is likely from the baby's position in the uterus, which leads to injury to the neck muscles.
Acquired torticollis may be caused by irritation to the cervical ligaments from a viral infection, injury, or vigorous movement. Additional causes may include:
- Sleeping in an awkward position
- Neck muscle injury at birth
- Burn injury
- Any injury that causes heavy scarring and skin or muscle shrinkage
- Neck muscle spasm
Torticollis may also be a condition that results from the following:
- Slipped facets (two small joints on the side of the spine)
- Herniated disk
- Viral or bacterial infection