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What is the principle of laser scar removal?
Classification: Medical/Disease >> Dermatology

Problem description:

Will it be dangerous?

Analysis:

Laser scar removal therapy

Principle: By changing the focusing characteristics of laser, the laser spot becomes a spot, and then the spot is scanned according to a certain pattern by using a pattern generator, so that the high heat generated by the laser spot instantly removes the target tissue in the scanning range.

Disadvantages: only the protruding skin can be removed, and the sunken place cannot be filled. Improper use of laser can also produce new scars or uneven spots.

It's not just scars that are repaired.

Scar is the natural enemy of beauty. However, injuries, surgery, acne sequelae, etc. It will leave ugly scars at any time, which makes people hard to prevent. So every holiday, people who love beauty aim beautiful guns at scars.

Many people think that scar repair surgery can make them beautiful immediately, just like ice cream in summer, and the summer heat can be dissipated at the entrance. But the effect of ice cream on summer heat is only temporary.

You will still feel thirsty after a while-similarly, the cosmetic effect of scar surgery is the most obvious, but there are also side effects.

Beauty or pain? This is an unavoidable problem when choosing medical beauty.

Surgery to repair scars is like ice cream. After the cool weather, you will still feel thirsty. Although cosmetic surgery has obvious effect, it also has side effects.

■ Cold recipes

Surgical scar removal, beauty and defects coexist.

The influence of scar on people is both physical and psychological. Because scars are "stubborn", many people will choose plastic surgery. Although the effect is obvious, the shortcomings can not be ignored.

Laser therapy

Popularity:

Principle: By changing the focusing characteristics of laser, the laser spot becomes a spot, and then the spot is scanned according to a certain pattern by using a pattern generator, so that the high heat generated by the laser spot instantly removes the target tissue in the scanning range.

Disadvantages: only the protruding skin can be removed, and the sunken place cannot be filled. Improper use of laser can also produce new scars or uneven spots.

Collagen injection

Popularity:

Principle: Use highly refined bovine collagen and add anesthetic, inject it into dermis, and let the body "dissolve" collagen.

Disadvantages: Allergy. Allergy test must be done before operation.

Fat injection

Popularity:

Principle: Fat is obtained from another part of the body through surgery, and injected into the scar after washing to make the scar fat grow.

Disadvantages: At present, the survival rate of fat transplantation is low, which requires multiple transplants.

Chemical stripping method

Popularity:

Principle: The chemical agent carbolic acid, trichloroacetic acid or α-hydroxy acid is coated on the surface of scar skin to remove the superficial skin cells. After the skin at the scar falls off, fresh and tender skin will appear.

Disadvantages: it will change the skin pigment and is not suitable for most yellow people.

Skin friction method

Popularity:

Principle: Apply the cooling agent to the numb skin of the affected area, and then polish it with a rotatable instrument to flatten the repaired skin surface.

Disadvantages: easy bleeding and pain, rough skin; The skin turns black after exposure.

■ antifreeze reminder

Scars can only be repaired, not removed.

● Li Jianning, Director of Plastic Surgery, Third Hospital of Beijing Medical University

First of all, it must be clear that the spot is the final result of wound healing, and it can only be as small as possible, as hidden as possible, and it is impossible to remove it. For example, the scar is just around the skin texture, and the position can be changed by some methods to hide it or make it inconspicuous. So scar repair is correct, but scar removal is not. Nowadays, many advertisements say that the spots can be smoothed out with a touch, or they can disappear with some physical therapy, which is unrealistic.