Most common spinal cord injury level

A spinal cord injury — damage to any part of the spinal cord or nerves at the end of the spinal canal (cauda equina) — often causes permanent changes in strength, sensation and other body functions below the site of the injury.

If you've recently injured your spinal cord, it might seem like every aspect of your life has been affected. You might feel the effects of your injury mentally, emotionally and socially.

Many scientists are optimistic that advances in research will someday make repair of spinal cord injuries possible. Research studies are ongoing around the world. In the meantime, treatments and rehabilitation allow many people with spinal cord injuries to lead productive, independent lives.

Products & Services

  • Book: Back and Neck Health
  • Newsletter: Mayo Clinic Health Letter — Digital Edition
Show more products from Mayo Clinic

Symptoms

Most common spinal cord injury level
Spinal cord injuries Open pop-up dialog box

Close

Spinal cord injuries

Most common spinal cord injury level

Spinal cord injuries

Paralysis of the lower half of the body is called paraplegia. Paralysis below the neck, including both arms and legs, is called quadriplegia.

Your ability to control your limbs after a spinal cord injury depends on two factors: where the injury occurred on your spinal cord and the severity of injury.

The lowest part of your spinal cord that remains undamaged after an injury is referred to as the neurological level of your injury. The severity of the injury is often called "the completeness" and is classified as either of the following:

  • Complete. If all feeling (sensory) and all ability to control movement (motor function) are lost below the spinal cord injury, your injury is called complete.
  • Incomplete. If you have some motor or sensory function below the affected area, your injury is called incomplete. There are varying degrees of incomplete injury.

Additionally, paralysis from a spinal cord injury can be referred to as:

  • Tetraplegia. Also known as quadriplegia, this means that your arms, hands, trunk, legs and pelvic organs are all affected by your spinal cord injury.
  • Paraplegia. This paralysis affects all or part of the trunk, legs and pelvic organs.

Your health care team will perform a series of tests to determine the neurological level and completeness of your injury.

Spinal cord injuries can cause one or more of the following signs and symptoms:

  • Loss of movement
  • Loss of or altered sensation, including the ability to feel heat, cold and touch
  • Loss of bowel or bladder control
  • Exaggerated reflex activities or spasms
  • Changes in sexual function, sexual sensitivity and fertility
  • Pain or an intense stinging sensation caused by damage to the nerve fibers in your spinal cord
  • Difficulty breathing, coughing or clearing secretions from your lungs

Emergency signs and symptoms

Emergency signs and symptoms of a spinal cord injury after an accident include:

  • Extreme back pain or pressure in your neck, head or back
  • Weakness, incoordination or paralysis in any part of your body
  • Numbness, tingling or loss of sensation in your hands, fingers, feet or toes
  • Loss of bladder or bowel control
  • Difficulty with balance and walking
  • Impaired breathing after injury
  • An oddly positioned or twisted neck or back

When to see a doctor

Anyone who has significant trauma to the head or neck needs immediate medical evaluation for a spinal injury. In fact, it's safest to assume that trauma victims have a spinal injury until proved otherwise because:

  • A serious spinal injury isn't always immediately obvious. If it isn't known, a more severe injury may occur.
  • Numbness or paralysis can be immediate or come on gradually.
  • The time between injury and treatment can be critical in determining the extent and severity of complications and the possible extent of expected recovery.

If you suspect that someone has a back or neck injury:

  • Don't move the injured person — permanent paralysis and other serious complications can result
  • Call 911 or your local emergency medical assistance number
  • Keep the person still
  • Place heavy towels on both sides of the neck or hold the head and neck to prevent them from moving until emergency care arrives
  • Provide basic first aid, such as stopping bleeding and making the person comfortable, without moving the head or neck

Request an Appointment at Mayo Clinic

 

There is a problem with information submitted for this request. Review/update the information highlighted below and resubmit the form.

From Mayo Clinic to your inbox

Sign up for free, and stay up to date on research advancements, health tips and current health topics, like COVID-19, plus expertise on managing health.

Email

ErrorEmail field is required

ErrorInclude a valid email address

Learn more about Mayo Clinic’s use of data.

To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and website usage information with other information we have about you. If you are a Mayo Clinic patient, this could include protected health information. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. You may opt-out of email communications at any time by clicking on the unsubscribe link in the e-mail.

Why can injuries at C1 or C2 be fatal?

Because the cervical spine is closer to the brain, and therefore affects a larger amount of the human body, spinal cord injuries that affect the atlas C1 and axis C2 sections of the spinal cord frequently result in death.

What happens if you break your C4 and C5?

Spinal cord injury below C4 (C5–C8) is generally not life threatening, but patients often show upper extremity segmental sensory and motor dysfunction after injury.