Can lateral canthoplasty cause scar hyperplasia?

Mar 13, 2025 Source: Cainiu Health
Disease description:

I am 23 years old this year, and I feel that my eyes are somewhat small. I am considering undergoing an outer canthoplasty (eye corner opening) procedure, but I am concerned about the possibility of postoperative scar hypertrophy. Does outer canthoplasty truly lead to scar overgrowth?

Doctor's answer (1)
Dr. Chen Lu

In general, scar hyperplasia may occur after an outer canthoplasty procedure. Scar hyperplasia is not necessarily caused by the surgery itself, but rather by multiple factors.

Canthoplasty involves cutting the skin and disrupting the skin barrier, which may lead to excessive collagen fiber production during the skin's self-repair process, thereby causing scar hyperplasia. Each individual's physical condition and recovery ability differ; some people may be more prone to scar hyperplasia. Individuals with a瘢痕体质 (scar-prone constitution) may experience excessive fibroblast proliferation after skin injury, resulting in abnormal scar tissue formation. Improper postoperative care, such as wound infection or secondary infection, may also lead to scar hyperplasia.

Scar hyperplasia typically becomes gradually noticeable within half a month after surgery, presenting symptoms such as induration, redness, swelling, and itching at the corner of the eye. As time progresses, the corner of the eye may gradually expand, and the scar issue might fade away, with the skin color returning to match the surrounding area.

Prior to undergoing canthoplasty, it is important to communicate thoroughly with the surgeon and assess whether you have a scar-prone constitution to reduce the likelihood of postoperative scar hyperplasia. Postoperative wound care should focus on avoiding infection and maintaining eye hygiene. Scar patches or other auxiliary products can be used promptly after suture removal to help minimize scar formation.