Ice pick scars give the skin a perforated appearance as if it was punctured in certain areas by a small icepick. This deficiency causes rounded or oval craterlike depressions as the skin heals because collagen is what makes our skin look soft and smooth. Unlike rolling or hypertrophic scars, boxcar marks result from a lack of collagen. Like rolling scars, boxcar scars are often caused by cystic acne that forms under the skin and prevents it from healing properly. They occur most frequently in areas where clusters of acne blemishes arise, such as the cheeks and forehead. They occur when thick ribbons of scar tissue form under the skin. Rolling scars cause the skin to appear taught, shiny, wavy, or bumpy in appearance. Rolling ScarsĬystic acne, blemishes that form deep under the skin and manifest as large red bumps, often causes damage under the skin’s surface, creating rolling scars as it heals. The prolonged infection stimulates excess collagen production as the skin is damaged and begins to heal repeatedly, resulting in raised scar tissue the same size and shape as the blemishes. Those who experience long-term acne issues on their forehead or chest are more prone to hypertrophic scarring. These types of acne scars typically form from deep wounds that penetrate several layers of the skin and are more likely to appear in regions with taut skin, such as the forehead. Hypertrophic scars are thick, inflexible, raised scars that result from excess connective tissue and collagen rushing into the area as it healshealed. As this damage heals, pigment cells flow into the healing area and cluster together, causing pink or red skin pigmentation for fair-skinned people and darker, hyperpigmented regions for those with darker complexions. When whiteheads burst (or are squeezed), they often bleed and cause a lot of damage to the surrounding skin. It’s usually caused by more severe acne infections, commonly called “whiteheads,” characterized by a red, inflamed bump on the skin with a white or yellow center. Post acne erythema occurs when healing blemishes leave red, irritated-looking dots or bumpy areas on your skin.
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