What is injury?
Any damage to your body is an injury. Injuries can be caused by accidents or acts of violence, and may occur at home, work, or play. They can be due to impact from blunt objects or from objects that penetrate the body. Common types of injury include abrasions, lacerations, hematomas, broken bones, joint dislocations, sprains, strains, and burns.
Injuries can be minor or severe. Minor injuries can often be managed with basic first aid techniques, while major injuries may require medical intervention or evaluation in an emergency setting. In some cases, a seemingly minor injury may in fact be a major injury requiring more urgent medical attention. Your doctor will also determine if an underlying medical condition was responsible. For example, a bruise that came from a fall caused by an elderly person fainted while attempting to stand – all because of poor blood circulation.
Many injuries can be prevented through use of safety devices, such as infant car seats, helmets, goggles, seatbelts, and child-resistant containers. Risk of injuries can be minimized by following commonsense safety precautions, such as avoiding contact with very hot surfaces and using caution during outdoor activities like hiking or boating. Diagnosis and treatment of injury has improved over time, so that once fatal injuries are now much more likely to be survivable. Even so, significant injuries can have long-lasting complications that can require ongoing care. In the United States, accidental injuries are the leading cause of death in those between ages one and 44 years (Source:
Treatment of injury depends upon the type and severity. In the event of a severe injury, calling 911 and use of basic life support measures can save a life. It is also important to prevent any further injury, which may involve stabilization of the spine, splinting injuries, and reducing ongoing blood loss as much as possible.
Serious injury can lead to permanent disability and may be life threatening. Seek immediate medical care (call 911) if you, or someone you are with, have symptoms such as heavy bleeding, visible deformity, broken bones, large burns, injury to the head with confusion or loss of consciousness, severe pain, rapid or absent heartbeat, weak pulse, blood in vomit or stool, difficulty breathing, pale or blue lips, chest pain or pressure, seizure, change in level of consciousness or mental status, injury to back or neck, or if you have any other reason to be concerned that the injury might be life threatening.
What are the symptoms of injury?
Injury symptoms vary depending on the type and severity of the injury itself. Injuries range from minor cuts, bruises and scrapes to large, open wounds, severe burns, and blunt force resulting in unconsciousness.
Common symptoms of injury
Injury symptoms include:
Bleeding or uncontrolled or heavy bleeding, hemorrhage
Bone deformity or other type of deformity
Burns, which may redden skin, cause blistering, or have a leathery white appearance
Reduced mobility (range of motion of the joint)
Tissue swelling with or without discoloration
Serious symptoms that might indicate a life-threatening condition
In some cases, injury can be life threatening. Seek immediate medical care (call 911) if you, or someone you are with, have any of these life-threatening symptoms including:
Abnormal pupil size or nonreactivity to light
Bleeding or abdominal trauma while pregnant
Bluish coloration of the lips or fingernails
Change in level of consciousness or alertness, such as passing out or unresponsiveness
Paralysis or inability to move a body part
Trauma, such as bone deformity, burns, eye injuries, and other injuries such as significant injuries to the head, neck or back
Uncontrolled or heavy bleeding, hemorrhage
Weak or absent pulse
What causes injury?
Anything that can damage the body can cause an injury. Injuries can be accidental or intentional, as in the case of acts of violence, and can be caused by blunt or sharp objects, impact at high speed, falls, animal or insect bites, fire or extreme heat, and exposure to chemicals and toxins. You can prevent or reduce the risk of many injuries by following basic safety precautions.
Causes of injury
The numerous causes of injury include:
Acts of violence by others
Bicycle or motor vehicle accidents
Bite or sting injuries
Burns (thermal, chemical or electrical)
Overuse and repetitive motion injuries
Poisonings and chemical exposures
Sports or athletic injuries
A number of factors increase the risk of developing injury. Not all people with risk factors will get injury. Risk factors for injury include:
Age (injuries are a common cause of death in those 44 and younger, and older people are at greater risk of sustaining injuries from falling)
Aggressive or violent behavior
Alcohol and illicit drug use
Bone or joint disorders
Certain medications that depress the central nervous system or reduce blood pressure
Dementia and other conditions that affect mental function
Failure to use automotive seatbelts
Refusal to wear recommended protective equipment and headgear
Reducing your risk of injury
You may be able to lower your risk of injury by:
Engaging in regular physical activity to enhance general good health
Installing handrails and grab bars
Obeying speed limits and using crosswalks
Optimizing lighting in and around your home
Putting children in car seats and booster seats
Reducing clutter and other tripping hazards in your home or office
Using nonslip mats or strips in the bathtub and shower
Wearing a helmet when riding bicycles, scooters or motorcycles
Wearing a seatbelt when driving
Wearing appropriate safety equipment during sports or other potentially risky activities
Wearing safety equipment, such as goggles, aprons and gloves, when working with hazardous substances or in dangerous areas
How is injury treated?
Treatment of injury depends upon its type and severity. Some injuries can be treated with basic first aid techniques such as wound cleansing, application of antibiotic ointments or liquids, wound dressings, rest, application of ice, compression, and elevation. More severe injuries may require cardiopulmonary resuscitation (CPR) and other resuscitation procedures, stitches, or surgery.
Common injury treatments
Common treatments for injury include:
Antibiotic ointments or liquids to reduce the risk of infection
Pain medications to reduce discomfort
Rehabilitative therapy to improve strength and function
Resuscitation to maintain circulation, airway, ventilation, and blood volume
R.I.C.E. (rest, ice, compression and elevation), particularly for sprains, strains, pulled muscles, and other soft tissue injuries
Splinting, casting, setting or relocating broken bones and joint dislocations
Stabilization of the neck and back
Stitches to close surface layers of the skin
Surgery to remove foreign bodies, stop bleeding, and repair or remove damaged tissues and organs
Transfusion to replace lost blood
Wound cleansing or irrigation to remove foreign particles
Wound dressings to protect wounds
Complications of untreated or poorly managed injury can be serious, even life threatening in some cases. You can help minimize your risk of serious complications by following the treatment plan you and your doctor design specifically for you. Complications of injury include: