A scar is a mark left on the skin after a wound or injury has healed. Scars are a natural part of the healing process and can be a fine line, a dimpled hole in the skin or raised with overgrowth of tissue. Most will fade, although they never disappear completely.
A minor wound, such as an incision after surgery, will usually heal to leave a raised line. It will fade and flatten gradually over time. This process can take up to 2 years. The scar will not disappear completely and you will be left with a visible mark or line.
A keloid scar/hypertrophic scar is an overgrowth of tissue that occurs when too much collagen is produced at the site of a wound. The scar thus continues to grow, even after the wound has healed.
Some scars caused by skin conditions, such as acne and chicken pox, may have a sunken or pitted appearance. They are called atrophic scars or "chicken pox" scars. Therefore, do not squeeze any pores at home, but book an appointment with an expert.
Scarring can also affect you psychologically. A scar, especially if it's on your face, can be very distressing. The situation can worsen if you feel like you are being stared at. If you avoid meeting people because of your scar, it's easy to become socially isolated. This can lead to depression. Make an appointment with a dermatologist if you feel that your scars are making you depressed or if they are affecting your daily activities.