By Mayo Clinic Staff
Electrical burns may be caused by a number of sources of electricity, such as lightning, stun guns and contact with household current. You may treat minor electrical burns as you would other minor burns.
When to contact your doctor
A person who has been injured by contact with electricity should be seen by a doctor. Sometimes an electrical injury can cause damage to internal tissues, usually in an arm or a leg. The damage may be worse than one would expect from the burn on the skin.
- Don't touch the injured person if he or she is still in contact with the electrical current.
- Call 911 or your local emergency number if the source of the burn is a high-voltage wire or lightning. Don't get near high-voltage wires until the power is turned off. Overhead power lines usually aren't insulated. Stay at least 20 feet (about 6 meters) away — farther if wires are jumping and sparking.
- Don't move a person with an electrical injury unless the person is in immediate danger.
When to seek emergency care
Call 911 or your local emergency number if the injured person experiences:
- Severe burns
- Difficulty breathing
- Heart rhythm problems (arrhythmias)
- Cardiac arrest
- Muscle pain and contractions
- Loss of consciousness
Take these actions immediately while waiting for medical help:
March 03, 2015
- Turn off the source of electricity if possible. If not, move the source away from both you and the injured person using a dry, nonconducting object made of cardboard, plastic or wood.
- Begin CPR if the person shows no signs of circulation, such as breathing, coughing or movement.
- Try to prevent the injured person from becoming chilled.
- Apply a bandage. Cover any burned areas with a sterile gauze bandage, if available, or a clean cloth. Don't use a blanket or towel, because loose fibers can stick to the burns.
- What to do in a medical emergency: Burns. American College of Emergency Physicians. http://www.emergencycareforyou.org/EmergencyManual/WhatToDoInMedicalEmergency/Default.aspx?id=222. Accessed Dec. 10, 2014.
- Millman M. Mayo Clinic Guide to Self-Care. 6th ed. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2010.
- Subbarao I, et al. American Medical Association Handbook of First Aid and Emergency Care. New York, N.Y.: Random House; 2009:56.
- AskMayoExpert. Electrical injuries. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2014.
- Field JM, et al. Part 2: Executive Summary, 2010 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Circulation. 2010;122(suppl):S650.
- Murphy F, et al. Treatment for burn blisters: Debride or leave intact? Emergency Nurse. 2014;22:24.
- First aid for electric shock. American Institute for Preventive Medicine. http://www.healthy.net/Health/Article/First_Aid_for_Electric_Shock/1490. Accessed Jan. 26, 2015.
- First aid for shock. American Institute for Preventive Medicine. http://www.healthy.net/scr/article.aspx?ID=1498. Accessed Jan. 26, 2015.
- Worker deaths by electrocution: A summary of NIOSH surveillance and investigative findings. Centers for Disease Control and Prevention. http://www.cdc.gov/niosh/docs/98-131/. Accessed Feb. 3, 2015.