10 Common First Aid Injuries Everyone Should Know How to Handle

 Accidents happen every day — at home, at work, and on the field. Knowing how to respond in the first few minutes can mean the difference between a minor setback and a life-threatening emergency. According to the National Safety Council, an American suffers a preventable injury every single second. That makes first aid knowledge one of the most practical skills you can have.

Whether you're a parent, a coach, or a coworker, these are the 10 most common first aid injuries you're likely to encounter — and what to do about them.

1. Cuts and Lacerations

Cuts are among the most frequent injuries treated with first aid. They happen at home, in the kitchen, at the workplace, or during physical activity. Minor cuts stop bleeding on their own. Deeper ones need immediate attention.

What to do: Apply firm pressure with a clean cloth for 3 to 15 minutes. Clean the wound with lukewarm running water. Apply a thin layer of antibiotic ointment and cover with a bandage. Seek emergency care if bleeding doesn't stop after several rounds of direct pressure.

2. Burns

Burns range from mild to severe. First-degree burns affect only the outer skin layer and cause redness and pain. Second-degree burns blister the skin. Third-degree burns damage deep tissue and require immediate emergency care.

What to do: Hold the burned area under cool (not cold) running water for at least 20 minutes. Cover small blisters with a loose bandage. Never apply butter, toothpaste, or ice to a burn. Seek medical help for burns larger than 3 inches or burns on the face, hands, or joints.

3. Sprains and Strains

A sprain is a stretch or tear of a ligament. A strain is an injury to a muscle or tendon. Both are extremely common during sports, exercise, and everyday movement. The wrist and ankle are the most frequent sites for sprains. The back and hamstrings are typical strain locations.

What to do: Use the RICE method — Rest, Ice, Compression, and Elevation. Apply ice for 20 minutes at a time, four to eight times a day. Avoid heat, as it worsens swelling. Severe pain, discoloration, or inability to bear weight warrants a trip to urgent care.

4. Fractures (Broken Bones)

Fractures result from falls, collisions, or direct impact. Common fracture sites include the wrist, ankle, and hip. Some fractures are obvious. Others cause only swelling, bruising, or tenderness.

What to do: Immobilize the affected area using a splint or padding. Don't try to straighten the bone. Apply the RICE method while waiting for medical help. Call 911 for fractures involving the head, neck, spine, or pelvis.

5. Head Injuries and Concussions

Head injuries range from minor bumps to concussions and traumatic brain injuries. A concussion is a brain injury caused by a blow or jolt to the head. Symptoms include headache, confusion, dizziness, and sensitivity to light.

What to do: Keep the person still and calm. Do not give pain medication unless directed by a doctor. Monitor for worsening symptoms. Seek emergency care immediately if the person loses consciousness, has unequal pupils, vomits repeatedly, or shows signs of confusion.

6. Choking

Choking is a life-threatening emergency. It occurs when a foreign object blocks the airway, cutting off oxygen to the brain. Children and the elderly are especially vulnerable.

According to the 2025 American Heart Association Guidelines for CPR and Emergency Cardiovascular Care, the recommended response for a conscious adult or child who is choking is to alternate five back blows with five abdominal thrusts until the object is expelled or the person becomes unresponsive.

What to do: Ask the person, "Are you choking?" If they cannot speak or cough, deliver five firm back blows between the shoulder blades, then five abdominal thrusts (the Heimlich maneuver). Repeat until the object is dislodged. Call 911 if the person loses consciousness.

7. Cardiac Arrest

Cardiac arrest occurs when the heart suddenly stops beating. It's not the same as a heart attack. In 2023, over 356,000 out-of-hospital cardiac arrests occurred in the United States, according to the American Heart Association. Sadly, only 40.2% of those victims received bystander CPR before EMS arrived. Immediate CPR can double or triple a person's chances of survival.

What to do: Call 911 immediately. Begin hands-only CPR — push hard and fast in the center of the chest at a rate of 100 to 120 compressions per minute. Use an AED as soon as one is available. Every minute without CPR reduces survival odds by 7 to 10%.

8. Allergic Reactions (Anaphylaxis)

Allergic reactions range from mild rashes to severe, life-threatening anaphylaxis. Anaphylaxis can cause throat swelling, difficulty breathing, a rapid drop in blood pressure, and loss of consciousness. Triggers include food allergies, insect stings, medications, and latex.

What to do: If the person has a prescribed epinephrine auto-injector (EpiPen), help them use it immediately. Call 911 even after using the EpiPen, as a second reaction can follow. Keep the person lying flat with legs elevated unless breathing is difficult. Do not give oral medications if the person is struggling to swallow.

9. Nosebleeds

Nosebleeds are common and usually not dangerous. They often result from dry air, nose picking, minor injuries, or high blood pressure. Most stop on their own within 10 minutes.

What to do: Sit the person upright and lean them slightly forward — not backward. Pinch the soft part of the nose firmly for 10 to 15 minutes without releasing. Breathe through the mouth. Avoid stuffing the nose with tissue, as this can disrupt clot formation. Seek medical attention if bleeding lasts more than 10 minutes or follows a head injury.

10. Eye Injuries

Eye injuries include foreign objects in the eye, chemical splashes, blunt trauma, and cuts near the eye. They're common in workplaces, during sports, and at home during DIY projects.

What to do: For a foreign object, flush the eye with clean water for 15 to 20 minutes. Don't rub the eye or try to remove embedded objects. For chemical exposure, rinse immediately and call Poison Control at 1-800-222-1222. Cover the eye with a clean cloth and seek medical care promptly. Time matters with eye injuries — delays can lead to permanent damage.

Why First Aid Training Matters

Knowing these 10 injuries is a strong first step. But knowing what to do in the moment is what saves lives. Classroom training builds the muscle memory and confidence to act fast — especially in cardiac emergencies, choking, and severe bleeding.

The American Heart Association notes that bystander CPR is one of the most critical links in the chain of survival. Yet most people never receive formal training. A certified CPR and first aid course changes that.

Get Certified with CPR Indianapolis

Ready to take your first aid knowledge to the next level? CPR Indianapolis is an American Heart Association authorized training site. We offer initial certifications and renewals in BLS for Healthcare Providers, ACLS, PALS, and CPR and First Aid courses. All classes are stress-free, hands-on, and led by experienced AHA instructors.

Whether you're searching for a CPR class near Indianapolis or need CPR and First Aid certification in Indianapolis for work, school, or personal preparedness — we make it simple, affordable, and fast. Same-day AHA eCards are issued upon completion.

Don't wait for an emergency to wish you knew what to do. Register for a class today and walk away prepared.