Burn

A burn hurts your skin.

Heat can cause a burn. Hot water or fire can do this. The sun can also cause one.

Some burns are small. They look red and hurt. They might peel in a few days.

Other burns are deeper. They may cause blisters. These can be very painful.

Very bad burns can be black. They can hurt the bone. These burns need a lot of help to heal. Most burns can be stopped if we are careful.

A burn is an injury to your skin. Many things can cause them. Heat is a common cause. This includes fire or hot liquids. We call burns from hot liquids scalding.

Other things cause burns too. Chemicals can hurt the skin. Electricity can cause them. Even light from the sun can cause a sunburn. This is a radiation burn.

Burns are grouped by how deep they go. A first-degree burn only hits the top layer. These look red and are painful.

A second-degree burn goes deeper. These often have blisters. They can be very painful and take weeks to heal.

Third-degree burns go through all skin layers. The area might feel stiff or even painless. Fourth-degree burns are the deepest. They can reach muscle or bone. These burns often look black.

Most burns can be prevented. If a burn happens, doctors can help. Small burns might just need rest. Big burns need special care in a burn center.

A burn is an injury to your skin or other body tissues. Many different things can cause this kind of harm. Heat is a very common cause of burns. This includes contact with fire or hot liquids, which is called scalding.

Other things can cause injuries too. Chemicals can hurt the skin, and electricity can cause burns as well. Even light from the sun can cause a radiation burn known as a sunburn.

Most burns happen in homes or at workplaces. In the home, kitchens can be risky because of stoves and flames. In the workplace, people may face risks from fire or chemicals.

How a burn affects you depends on how deep it goes. A first-degree burn only affects the top layer of skin. These look red and feel painful, but they do not have blisters.

A second-degree burn goes deeper into the skin layers. These often have blisters and can be very painful. They might take up to eight weeks to heal.

A third-degree burn goes through all the layers of the skin. The area might feel stiff or even painless because the nerves are damaged.

Finally, a fourth-degree burn reaches even deeper into muscle or bone. These often look black and can lead to losing that part of the body.

Scientists and doctors use different ways to understand these injuries. Guillaume Dupuytren was a person who helped develop the way we classify the degrees of burns.

Understanding the depth helps doctors decide how to help a person. For example, small burns might only need simple medicine for the pain. Large burns might need a special place called a burn center for long treatment. Doctors might even use skin grafting, which is a surgical way to help the skin heal. Cooling a burn with tap water can also help decrease the damage.

There are many important numbers to know about burns around the world. In 2015, fire and heat caused 67 million injuries. This led to about 2.9 million hospitalizations and 176,000 deaths.

In the United States, about 96% of people admitted to a burn center survive. In the U.S., fire or flames cause 44% of burns, while scalds cause 33%.

Many deaths from burns happen in the developing world, especially in Southeast Asia. Women in many parts of the world often get burns from using open cooking fires. Men are more likely to get burns from unsafe conditions at work.

Learning about burns helps us stay safe in our daily lives. Most burns are preventable if we are careful around heat and electricity. You might notice that your skin gets itchy while it is healing. This happens to almost all children and up to 90% of adults. If you have ever had a small sunburn, you have experienced a first-degree burn. By knowing how burns work, we can better understand how to protect our bodies.

A burn is a serious injury to the skin or other body tissues. These injuries occur when the body is exposed to heat, electricity, chemicals, friction, or ionizing radiation.

Radiation burns can include sunburns caused by ultraviolet light from the sun. Thermal burns are the most common type. These are caused by contact with fire, hot solids, or hot fluids. When a person is burned by hot liquids or gases, it is specifically called scalding.

Most burns happen within homes or workplaces. In many homes, the kitchen is a primary site of risk due to stoves and flames. In workplaces, risks often involve fire, chemicals, or electricity.

To understand how a burn works, we must look at what happens to cells. When temperatures rise above 60 degrees Celsius, proteins begin to lose their three-dimensional shape. This process causes the proteins to break down, leading to tissue damage.

This damage disrupts the skin's ability to perform vital functions. The skin normally protects us from bacteria and regulates body temperature. It also prevents the evaporation of our body's water. When these functions fail, a person may experience infection or hypothermia. Large burns can also cause hypovolemic shock. This happens because water evaporates away or leaks from the capillaries.

Medical professionals classify burns into different stages based on their depth. A superficial or first-degree burn affects only the outermost skin layers. These appear red and dry without blisters, and the pain usually lasts about three days.

A partial-thickness or second-degree burn extends into the underlying skin layers. These often produce painful blisters and can take up to eight weeks to heal. If the injury reaches the deep dermis, it may appear yellow or white. A full-thickness or third-degree burn extends through all layers of the skin. These areas may look white or brown and feel stiff or leathery. Interestingly, these burns are often painless because the nerves are damaged.

Some injuries are even more severe than a third-degree burn. A fourth-degree burn extends through the entire skin into deeper tissues. This includes damage to muscle, tendons, or even bone. These burns often appear black and charred. Because they reach the deepest parts of the body, they frequently lead to the loss of the affected part.

Treatment for these injuries varies greatly. Small superficial burns may only need simple pain medication. However, major burns often require specialized burn centers. Doctors may use skin grafting, which is a surgical procedure, to help heal deep wounds. For very large burns, patients may require large amounts of intravenous fluids to replace lost moisture.

Different sources can cause these various types of damage. In the United States, fire or flame causes 44% of burns. Scalds account for 33%, while hot objects cause 9%. Electricity causes 4% and chemicals cause 3%.

Chemical burns can be caused by over 25,000 different substances. Most of these are either strong bases or strong acids. Electrical burns are classified by voltage. High voltage is any amount equal to or greater than 1000 volts. Electrical injuries can also cause internal damage that is not visible on the skin. They can even lead to heart problems like cardiac arrest.

History has played a role in how we treat these injuries today. Guillaume Dupuytren was a person who helped develop the classification system for burn degrees.

Since 1960, new treatments have greatly improved outcomes for patients. This is especially true for children and young adults. In the United States, approximately 96% of people admitted to burn centers survive. However, the world still faces a heavy burden from these injuries. In 2015, fire and heat caused 67 million injuries globally. This resulted in 2.9 million hospitalizations and 176,000 deaths.

Burn patterns can also tell a story about how an injury happened. For example, an immersion scald might show a sharp upper border. This is sometimes called a "sock burn" or "glove burn" if a limb was held in hot water. In the developing world, many women suffer burns from using open cooking fires. Among men, injuries are more likely to come from unsafe workplace conditions. Most burn deaths occur in the developing world, particularly in Southeast Asia.

While burns are serious, many are preventable through safety and care.