Certified Wound Ostomy Nurse (CWON) Practice Test

What is the primary characteristic of hypertrophic scars?

1. They are always flat and unnoticeable

2. They appear raised and can regress over time

3. They do not change color

4. They require surgical removal

The correct answer is: They appear raised and can regress over time

The primary characteristic of hypertrophic scars is that they appear raised and can regress over time. Hypertrophic scars develop as a result of an overproduction of collagen during the healing process after an injury or incision. This excess collagen creates a thickened, raised area of skin that remains within the boundaries of the original wound. What sets hypertrophic scars apart from other types of scars, such as keloid scars, is their potential to improve over time. Hypertrophic scars may diminish in size and become less raised with proper care and management. This regression can occur even without any medical intervention, although treatments such as silicone gel sheeting, corticosteroid injections, or laser therapy can also assist in the healing process. In contrast, the other options do not accurately reflect the characteristics of hypertrophic scars. While they can vary in appearance, stating that they are always flat and unnoticeable is incorrect because their defining trait is that they are notably raised. Also, hypertrophic scars can change color, especially during the maturation phase, and may produce a reddish or darker pigmentation. Surgical removal is generally not required unless the scar is severely impacting function or causing significant cosmetic concern, which is not a primary characteristic of hypertrophic scars themselves.