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By Mayo Clinic staffSigns and symptoms will vary, depending on the severity of the injury.
Sprains
- Pain
- Swelling
- Bruising
- Limited ability to move the affected joint
- At the time of injury, you may hear or feel a "pop" in your joint
Strains
- Pain
- Swelling
- Muscle spasms
- Limited ability to move the affected muscle
When to see a doctor
Mild sprains and strains can be treated at home. But you should see a doctor if you:
- Can't walk more than four steps without significant pain
- Can't move the affected joint
- Have numbness in any part of the injured area
- See redness or red streaks spreading out from the injury
- Sprains and strains. National Institute of Arthritis and Musculoskeletal and Skin Diseases. http://www.niams.nih.gov/Health_Info/Sprains_Strains/default.asp. Accessed July 28, 2009.
- Activity health tip #2: Sprains, strains and contusions. National Athletic Trainers' Association. http://www.nata.org/consumer/sprainsandstrains.htm. Accessed July 28, 2009.
- Sprains and strains: What's the difference? American Academy of Orthopaedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=A00111. Accessed July 29, 2009.
- El Abd O. Low back strain or sprain. In: Frontera WR, et al. Essentials of Physical Medicine and Rehabilitation. 2nd ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/das/book/body/151967914-3/868577610/1678/47.html#4-u1.0-B978-1-4160-4007-1..50046-8_717. Accessed July 29, 2009.
- Geiderman JM. General principles of orthopedic injuries. In: Marx JA, et al. Rosen's Emergency Medicine: Concepts and Clinical Practice. 6th ed. Philadelphia, Pa.: Mosby Elsevier; 2006. http://www.mdconsult.com/das/book/body/151967914-3/868577610/1365/118.html#4-u1.0-B0-323-02845-4..50051-2--cesec59_1711. Accessed July 29, 2009.