Scar Revision

Whether caused by an accident, injury, surgery, burn or acne, you may have a scar you would like improved. Some facial scars can impair normal muscle function of the eyes, mouth or nose. While scars may become less obvious over time, all scars are permanent.

At UCSF Medical Center, our plastic surgeons offer a wide range of treatments for improving the appearance of scars, including the most advanced surgical scar revision techniques, such as skin grafts, Z-plasty or flap surgery.


If you are considering scar revision surgery, you will first meet with a facial plastic surgeon for a consultation. Please bring information about your medical history, including previous surgeries, present and past health problems, and any medications, vitamins or nutritional supplements you are taking or have taken at some time.

Your surgeon will evaluate your scar, as well as the thickness, color and elasticity of your skin. He or she will also discuss which kinds of treatments are available to treat your scar.

If you decide to undergo scar revision and are found to be a good candidate, your surgeon will explain the techniques and anesthesia that will be used, the type of facility where the surgery will be performed, and the risks and costs involved. Be sure to ask your surgeon any questions you may have, and express your concerns and expectations related to the surgery.


Although health insurance typically does not cover cosmetic surgery procedures, if scar revision is performed to minimize scarring from an injury or to improve your ability to function, it may be at least partially covered. However, because of their location, most facial scars are considered a cosmetic problem and treatment is therefore typically not covered by insurance. Check your policy or call your insurance carrier to determine which scars and treatments are covered.


Although scar revision is a very common procedure and the risks associated with it are rare, it is very important to understand and discuss them with your surgeon before having surgery. As with all surgeries, some of the potential complications include infection, bleeding and adverse reactions to anesthesia.

You can help minimize certain risks by following the instructions of your plastic surgeon, both before and after surgery. Once the date for surgery has been set, your surgeon will provide you with specific instructions on how to prepare for surgery. These include guidelines on drinking, smoking, and taking and avoiding certain medications and vitamins. If you smoke, it is highly recommended that you stop smoking for a period of time before and after surgery.

It is suggested that you arrange for someone to drive you home after surgery and care for you afterwards until you are feeling better.


The scar revision technique your surgeon will use will depend on your type of scar.

Keloid Scars

Keloid scars occur when the body continues to produce tough, fibrous protein known as collagen after a wound has healed. As a result, a thick, puckered and itchy cluster of scars, often red or darker in color than the surrounding skin, may grow beyond the edges of the wound or incision.

Keloid scars are often first treated with steroid injections to reduce the size. If the scars don't respond to injections, they can be removed surgically. This is usually an outpatient procedure, performed under local anesthesia. Following surgery, you should be back at work in a day or two, and your stitches will be removed in a few days.

It is important to note that even after treatment, keloid scars may come back larger and more visible than before. However, your surgeon can use certain methods to discourage this, such as applying or injecting steroids into the scar, or administering radiation therapy. Wearing a pressure garment for a year or more may also be recommended.

Hypertrophic Scars

Hyperthropic scars are red, raised and thick, and grow within the boundary of the wound or incision.

Hypertrophic scars often improve on their own without treatment over time, or with steroid applications or injections. If they do not respond to steroid treatment, they may be removed surgically. During this procedure, your plastic surgeon will remove excess scar tissue and reposition the incision so that it heals in a less visible pattern. This surgery may be performed under local or general anesthesia.

To discourage the scar from recurring, your surgeon may inject steroids into the scar during surgery. In some cases, receiving steroid injections after surgery for up to two years may also be recommended.

Contracture Scars

Contracture scars may occur when a large area of skin is injured — typically from a burn — and the skin pulls together and puckers. The scar may restrict the movement of surrounding muscles and tendons.

Contracture scars may be treated with skin grafting, flap surgery or Z-plasty.

Skin Grafting

Skin grafting is a complex surgical procedure and typically used to treat more severe scars, such as contractures and other scars caused by burns. It involves transferring skin from a healthy part of the body (the donor site) to cover the injured area. Grafts are often taken from fatty areas, such as the thigh; for more extensive scars, grafts may be needed from many areas.

Skin grafting can greatly improve the function of a scarred area. However, it is important to note that transferred skin may not precisely match the color and texture of the surrounding skin.

Flap Surgery

Flap surgery is a complex surgical procedure in which skin, along with the underlying fat, blood vessels and sometimes the muscle, is moved from a healthy part of the body to the injured site. In some flaps, the blood supply remains attached at one end to the donor site; in others, the blood vessels in the flap are reattached to vessels at the new site with the use of microvascular surgery.

Flap surgery can greatly improve the function of a scarred area. However, the transferred skin may not precisely match the color and texture of the surrounding skin. In general, flap surgery produces better cosmetic results than skin grafts.


Z-plasty is a surgical technique that makes a scar less visible by changing its direction so that it more closely conforms to the natural lines and creases of the skin. During this procedure, the old scar is removed and new incisions are made on each side, creating small triangular flaps of skin. These flaps are then rearranged to cover the wound at a different angle, giving the scar a "Z" pattern. The wound is closed with fine stitches, which are removed a few days later.

Z-plasty is usually performed as an outpatient procedure with local anesthesia.

Facial Scars

Facial scars can be treated in a number of ways, such as dermabrasion and Z-plasty. The simplest way of making a facial scar less visible is by cutting out the scar and closing the incision with tiny stitches, leaving a thinner, less visible scar. If the scar is located across a natural crease on your face, your surgeon may redirect the scar so that it runs parallel to these lines.


A technique known as dermabrasion may be used to improve facial scars. Dermabrasion involves scraping the top layers of the skin using a hand-held, high-speed rotary wheel. Although it leaves a smoother surface on the skin, it won't completely erase your scar.


Recovery differs for each patient, and the healing process occurs in stages.

When surgery is completed, you will be taken into a recovery area and closely monitored. For most outpatient procedures, patients are permitted to go home after a few hours. For more complex procedures that are performed in the hospital, such as skin grafting or flap surgery, a short hospital stay may be required.

It is natural to experience some discomfort after facial scar revision surgery; your surgeon can prescribe pain medications to make you feel more comfortable. You will also experience some swelling, bruising and redness after surgery. Don't be alarmed if your scar looks worse following surgery. It may take up to a year for its appearance to improve.

Resuming Normal Activities

Your surgeon will provide you with specific instructions and guidelines for resuming your regular daily routine. It is very important to follow your surgeon's instructions to make sure your wound heals properly.

Though your stitches will be removed within days after the surgery, your skin needs time to heal. It is recommended that you take it easy and decrease your activity after surgery. To reduce swelling, keep your head elevated when lying down, use cold compresses and avoid any activity that places stress on the area of the incision.

Keep in mind that no scar can be removed completely and the degree of improvement depends on the size and direction of your scar, the nature and quality of your skin, and how well you care for the wound after surgery. It is important to remember that scar tissues require a year or more to fully heal.


Your surgeon will schedule frequent follow-up visits in the months after surgery, to check on your progress. If you develop any unusual symptoms between visits, or have any questions or concerns, please don't hesitate to call your surgeon.


Reviewed by health care specialists at UCSF Medical Center.

Related Information

UCSF Clinics & Centers

Plastic and Reconstructive Surgery

Plastic and Reconstructive Surgery (Cosmetic)
350 Parnassus Ave., Suite 509
San Francisco, CA 94143-0932
Phone: (415) 353-3526
Fax: (415) 353-4330

Our Experts

William Hoffman
Dr. William Hoffman,
plastic and reconstructive surgeon
P. Daniel  Knott
Dr. P. Daniel Knott,
facial plastic, aesthetic and reconstructive surgeon
Mary McGrath
Dr. Mary McGrath,
plastic surgeon
Jason Pomerantz
Dr. Jason Pomerantz,
plastic and reconstructive surgeon
Rahul Seth
Dr. Rahul Seth,
facial plastic, aesthetic and reconstructive surgeon