When the skin gets injured, the body is naturally equipped to repair the damage. How the body repairs the injury varies depending on how deep the injury is on your skin.
If the injury has involved the superficial layer of your skin, you will see new skin as it appears. To repair involvement that goes deeper than the top layer, your body heals through a tissue thicker than the skin known as collagen. This is much thicker than normal skin and is less pliable. This tissue becomes a scar.
What do scars look like?
Newly formed scars have a pink to reddish colour. As they mature, the colour often turns lighter or darker than the skin.
Mostly the scars are flat, and the skin over the surface appears wrinkled.
If a lot of extra collagen is made, there will be a raised scar.
Sometimes, your body makes a lot of collagen and the scar is bigger than the original wound. This type of raised scar is called a keloid
A sunken scar appears when there is a lot of inflammation in your skin as in acne or chickenpox. This occurs when the inflammation destroys collagen in your skin
When a scar forms, the newly formed tissue is tighter and thicker than your skin and makes it difficult to move. Such a scar that limits movement is called a contracture scar and this type of scar is seen in burns
Stretch marks are also a type of scar that causes a disruption in the connective tissue and also when our skin grows or shrinks rapidly
Treatment for scars
Not every scar may require treatment. However, if a scar makes you feel uncomfortable, treatment is available to reduce the visibility of the scar and improve movement. The appearance of a scar is influenced by the following:
As a result of injury such as an accident, acne, burn, surgery, etc
The wound size and its depth
The part of the body involved
How do dermatologists prevent and treat scars?
Lasers and other light energy treatments:
These treatments can:
Prevent the formation of raised scars and keloids
Reduce the visibility of existing raised scars and keloids
Decrease scar tissue formation after surgery
Treat depressed acne or pox scars
Reduce the colour of the scar including redness
Improve mobility when a scar limits movement
Reduce symptoms such as pain, itch, hardness, and swelling
Corticosteroid injections:
They are widely used in the treatment of raised scars and keloids. Dermatologists often inject a corticosteroid directly into the scar to:
Reduce the size of a raised scar or keloid
Ease symptoms of itch and pain
Sometimes another form of scar treatment, such as an injection of 5-FU or a pulsed-dye laser.
5-FU or bleomycin injections:
Your dermatologist may use one of these medications directly into the scar to:
Reduce or relatively flatten a raised scar or keloid
Ease symptoms of itch and pain
It may be combined with another scar treatment, such as a corticosteroid injection or pulsed-dye laser therapy.
Cryosurgery:
This treatment is used to freeze the scar, which eventually destroys the scar tissue. Dermatologists have used this treatment for years to:
Reduce the size of raised scar or keloid
Diminish the symptoms such as pain, itch, hardness, and discolouration
The procedure can reduce the size of a scar by 50% or more.
Sometimes, the patient may also receive an injection of a medication, such as a corticosteroid or 5-FU.
Scar surgery: During this surgery, a dermatologic surgeon cuts out the scar too,
Reduce the size of a keloid
Increase your ability to move if a scar limits movement such as a burn contracture
This surgery I only an option when other treatment fails.
A scar can return after it’s removed.
To reduce this risk, the surgeon often leaves the border of the keloid in place.
To improve the results of the procedure, additional treatments such as injections of a corticosteroid, are often given to those who have scar surgery.
Radiation:
Radiation therapy for scars can:
Reduce the appearance of raised scars and keloids when other treatments fail
Relieve the itch and discomfort that accompanies raised scars and keloids
Lessen the risk of a scar coming back following a scar surgery
Chemical peels:
A dermatologist will use a chemical solution over the scar area.
When the peel is removed, the irregular skin is replaced to reveal a smoother layer of skin
This treatment may require sessions and are best for surface-level scars.
Dermabrasion:
Using a machine that is designed to rub over the skin surface, a dermatologist uses it to smooth away the superficial layer of your skin.
Like a chemical peel, this treatment is a good option for smoothing a raised scar.
Ointments:
Over-the-counter scar removal topical ointments may be a good solution for minor scarring. Dermatologist-prescribed preparations that are best suited for your skin are to be used.