Most of us think of wounds happening because of accidents. But even clean surgical incisions are wounds. So are places where tubes or catheters go into the body. Our skin is the largest organ in our body and helps protect our body from germs (bacteria, fungi, and viruses) that live on our skin. So, anything that breaks the skin is a wound because when the skin is broken, there's a risk of germs getting into the body and causing an infection.
The deeper, larger, or dirtier a wound is, the more care it needs. That's why a team of doctors and specially trained wound care nurses work together to monitor and treat serious wounds.
Doctors and nurses start by evaluating a wound based on the risk of infection. "Clean" wounds — those that aren't contaminated with bacteria — have the lowest risk of infection, making them easier to care for. The incision a surgeon makes on a person's knee during ACL repair is likely to be a clean wound because the area is cleaned with an antibacterial solution before surgery — and it's in a place where there's a low risk of infection.
Dirty or infected wounds, like an abscess or gunshot wound, are a different story. They usually require special treatment and monitoring to prevent infection.
Sometimes a wound is clean but there's a risk of infection because of where it is on the body. If the wound is in an area that has more bacteria — like the urinary tract, gastrointestinal system, or respiratory system — fluids and other contaminants could get into the wound and cause infection.
If a wound is clean, a doctor will close it by stitching the edges together in two separate layers. The doctor will use dissolvable stitches to join the deeper layer of tissue under the skin. Then he or she will staple, tape, or stitch the skin over it.
Sometimes doctors use dissolvable stitches or tape to join the upper layer of skin as well as the lower layer. Otherwise, the doctor will remove any surface stitches or staples after about 7 to 10 days.
Doctors don't always close a wound right away, though. If there's a chance a wound is contaminated, they will leave it open to clean it out. Closing a contaminated wound can trap bacteria inside and lead to infection. When they're sure there are no remaining bacteria or other contaminants, they will stitch or close the wound.
Sometimes, doctors decide it's best not to sew up a wound at all. If someone has lost a lot of tissue (like after a serious accident), it's often helpful to leave the wound open to heal through natural scar formation.
Before healing begins, the body gears up to protect against infection. For the first few days, a wound may be swollen, red, and painful. This inflammation is the body's immune system kicking in to protect the wound from infection. Keep your wound clean and dry at all times to help the healing process.
As the body does its healing work on the inside, a dry, temporary crust — a scab — forms over the wound on the outside. The scab's job is to protect the wound as the damaged skin heals underneath.
Under the scab's protective surface, new tissue forms. The body repairs damaged blood vessels and the skin makes collagen (a kind of tough, white protein fiber) to reconnect the broken tissue.
When the work of healing is done, the scab dries up and falls off, leaving behind the repaired skin and, often, a scar. At this point, the scar will be almost 80-90% the strength of normal skin. It'll take a few months for the scar to be back to 100% strength of normal skin.
Why do scars look different from normal skin? Our skin is made up of two proteins: elastin, which gives skin its flexibility, and collagen, which gives it strength. But because the body cannot create new elastin, scars are made entirely of collagen. So they're tougher and less flexible than the skin around them.
Serious wounds don't heal overnight. It can take weeks for the body to build new tissue. So after you leave the hospital or doctor's office, good home care is important to prevent infection and minimize scarring.
Because wounds can be so different, your doctor will give you instructions on how to take care of yourself after you go home from the hospital. In most cases, doctors will ask patients to do the following things:
Our bodies rely on vitamins and minerals to heal. Try to eat healthy foods — especially lots of vitamin-rich fruits and vegetables and lean proteins — while your wound is healing. Drink plenty of water and eat high-fiber foods like whole grains to avoid constipation. (Constipation can be a side effect of pain medication.)
Your wound might heal quickly, but scars can take longer. For thick scars, try massaging the area with lotion or petroleum jelly. Doing this helps the collagen mingle with the elastin in the surrounding skin, decreasing some of the scarring. Ask your doctor or a wound care nurse if massaging the wound is a good idea before you try it.
If a deep or large wound gets infected, it can be a serious problem. Call your doctor or surgeon right away if any of these things happen:
There's good news about wound healing when you're a teen: Age is on your side because young bodies heal faster.
It may be frustrating having to hold back on activities like sports while a wound heals. But if you take good care of yourself and follow your doctor's advice, it won't be long before the wound is a distant memory.
|American Red Cross The American Red Cross helps prepare communities for emergencies and works to keep people safe every day. The website has information on first aid, safety, and more.|
|Centers for Disease Control and Prevention (CDC) The CDC (the national public health institute of the United States) promotes health and quality of life by preventing and controlling disease, injury, and disability.|
|National Athletic Trainers' Association This site contains information on certified athletic trainers and tips on preventing and healing sports injuries.|
|Cellulitis Cellulitis is a skin infection that involves areas of tissue just below the skin's surface. It can affect any part of the body, but it's most common on exposed areas, such as the face, arms, or lower legs.|
|Dealing With Cuts and Wounds Most cuts can be safely treated at home, but deep cuts and certain other injuries require medical treatment. Find out what to do by reading this printable instruction sheet.|
|Dealing With Falls Falls are mostly a problem for young children and old people, but they can happen to active teens. Find out what to do - and when to get medical attention - by reading this printable instruction sheet.|
|Babysitting: Dealing With Cuts What should you do if a child you're babysitting gets a cut? Our tip sheet can help you be prepared.|
|What's It Like to Have Surgery? Knowing what to expect with surgery before you get to the hospital can make you less anxious about your surgical experience - and less stress helps a person recover faster.|
|Sports and Exercise Safety Playing hard doesn't have to mean getting hurt. The best way to ensure a long and injury-free athletic career is to play it safe from the start. Find out how.|
|Tetanus Tetanus occurs when a certain type of bacterial infection grows in a contaminated wound. Because it can be serious, it's important to get immunized. Find out about tetanus and how to protect yourself against it.|
|Cuts, Scratches, and Scrapes Most small cuts, scrapes, or abrasions heal on their own. Here are tips for teens on how to treat cuts at home - and when to get medical help.|
|Staph Infections Staph bacteria can live harmlessly on many skin surfaces. But the bacteria can get into wounds and cause an infection. Get the details in this article for teens.|
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