Most Martial Arts Injuries Start Below the Waist

Quick answer

Martial-arts injuries are often less dramatic than people expect. The common problems are strains, sprains, bruises, fractures, knees, ankles, feet, and legs.

Head injuries still matter, especially in striking sports. But the everyday injuries that stop training often start below the waist.

This article is not medical advice. If you have sharp pain, swelling, instability, concussion symptoms, or an injury that does not improve, speak to a licensed medical professional.

What the research looked at

This article uses three sources:

These sources do not capture every injury. Emergency-room data misses small injuries that fighters ignore or manage at home. Survey data depends on what athletes remember and report.

Main emergency-room findings

The 2023 study used 8,400 raw emergency-room cases. The authors estimated about 310,000 martial-arts injuries in the United States across 2009 to 2019.

The most common injury types were:

The knee was the most common single injury site at 9.7%. The head and foot were close behind.

When grouped by body region:

The plain takeaway: a lot of martial-arts injury risk sits in the lower body.

Injuries by discipline

The same emergency-room study found different patterns by martial art:

This does not mean one art is automatically safe or unsafe. It means the injury pattern changes with the rules and the movements.

Grappling stresses joints. Striking stresses heads, hands, shins, knees, ankles, and feet.

Sex differences in the ER data

The ER study also reported some sex-based differences:

Fractures were 19.7% of male injuries and 17.4% of female injuries. Dislocations were 3.5% for men and 2.4% for women.

Ankle injuries were 10.4% of female cases and 6.0% of male cases.

The practical point: if your ankles are unstable, take them seriously. Warm them up, strengthen them, and use tape or a brace when appropriate.

Most ER cases were not hospital admissions

Only 2.2% of people in the ER study were admitted to hospital.

Concussion-related admissions were 0.12% of the full emergency-room sample.

Two factors raised admission risk:

This does not mean injuries are harmless. It means many martial-arts injuries are treated and sent home, while fractures, older age, and serious orthopaedic injuries deserve extra care.

What emergency-room data misses

Emergency-room data misses injuries that never reach a hospital:

• bruised shins
• sore knees
• jammed toes
• rolled ankles
• pulled calves
• mild strains
• training pain people ignore

That is why the Muay Thai study matters. It asked fighters directly about injuries.

In that study, soft-tissue damage, bruises, and cuts made up 80% to 90% of reported injuries. Legs were the most common injury area at every level.

The same paper estimated that around 60% of injuries went unreported. So low injury rates should be read carefully. They may be the floor, not the full picture.

Beginners need more protection

The Muay Thai study found high injury rates among beginners.

The authors noted that two beginners reported many injuries, so the exact number should be treated carefully. Still, the direction makes sense.

Beginners often:

• warm up poorly
• move inefficiently
• pace rounds badly
• miss warning signs
• throw kicks and checks with poor control
• train through small injuries

This is fixable. A proper moving warm-up, controlled intensity, and better pacing can reduce a lot of beginner risk.

Serious injuries still happen

Most martial-arts injuries are minor, but serious injuries can keep people out for a long time.

The 2024 orthopaedic review highlighted:

• knees
• hands
• shoulders
• elbows
• fractures
• spine injuries
• ACL rupture

ACL rupture was singled out as an injury strongly tied to long time away from training. The review also reported that only about 60% of martial artists return to their pre-injury level after a major injury.

The review also noted that serious injuries are more common with higher experience and competition level. Beginners may collect many small injuries. Harder training and competition can create bigger forces and bigger consequences.

What this means for training

Use the data in a simple way:

• Warm up your legs before hard rounds.
• Treat ankle instability as a real issue.
• Do not ignore knee pain that changes how you move.
• Build strength, balance, and control outside sparring.
• Do not rush back from fractures, major sprains, or joint injuries.
• Keep some training non-contact so skill work does not always add injury risk.

Solo training, bag rounds, and controlled drills do not make training risk-free. They do reduce partner-contact exposure. That can help you build skill while managing injury load.

Repeated head contact is a separate concern. We cover the recognition side in the concussion article.

What these studies do not prove

They do not prove your personal injury risk.

They do not prove that one martial art is safe and another is dangerous.

They do not capture every bruise, sprain, or training injury.

They do show a useful pattern: lower-body injuries are common, many injuries are minor, serious injuries still matter, and fighters underreport more than people think.

Sources

• Bickley RJ, Hazim NY, Sy JW, Nute DW. An epidemiological study of martial arts injuries in patients presenting to US emergency rooms. Injury, 2023. doi:10.1016/j.injury.2023.111089
• Gartland S, Malik MHA, Lovell ME. Injury and injury rates in Muay Thai kick boxing. British Journal of Sports Medicine, 2001;35(5):308-313. doi:10.1136/bjsm.35.5.308
• Su AW, Johns WL, Bansal S. Martial arts: orthopaedic injuries and related biomechanics. Journal of the American Academy of Orthopaedic Surgeons, 2024;32(1):e1-e12. doi:10.5435/JAAOS-D-23-00261