Keloid scars are also due to too much collagen, but they differ from hypertrophic scars in that the scar tissue can continue to build up, growing larger than the original acne blemish (Connolly, 2017).ĥ min read Too little tissue (atrophic scars)Ītrophic scars appear as depressions in the skin. They’re typically the size of the original pimple and are caused by an overproduction of collagen (Connolly, 2017). Hypertrophic scars are raised scars that stick out above the skin. Too much tissue (hypertrophic and keloid scars) Picking or squeezing pimples: When you pick at or squeeze your pimples, you’re creating more trauma and increasing the damage that has to be repaired.Īcne scars fall into two main categories: they either have too much tissue (hypertrophic scars) or too little tissue (atrophic scars) (Connolly, 2017).Genetics: Your genes can affect the types of breakouts and how your skin heals.The severity of acne: Deep cystic acne or severe breakouts are more likely to cause scarring.Some factors can increase the risk of scarring, including (Connolly, 2017): If the body repairs the damage with too much or too little collagen-a protein that is essential for skin health and wound healing-it can lead to scarring (Connolly, 2017). But if your blemishes become inflamed and turn into cysts, they’re more likely to damage surrounding skin tissue. Most pimples, blackheads, and whiteheads will not scar. Why does acne cause scarring?Īcne develops when your pores or hair follicles clog with a buildup of sebum (a natural oil made by the sebaceous glands) and dead skin cells. Sun exposure during the healing of a blemish can also add to hyperpigmentation ( Lawrence, 2021 Davis, 2010). Inflammation can cause these spots to occur by revving up melanin production, which can lead to brown hyperpigmented spots, especially if you have a medium to deep skin tone. The brown spots-postinflammatory hyperpigmentation-may take six months to a year to fade, depending on your skin type. They usually fade over a few weeks or months ( Connolly, 2017). Inflammation and swollen blood vessels sometimes leave behind those pink or red marks (called postinflammatory erythema), especially in people with lighter skin tones. If you’re noticing red or brown spots that have the same texture as your normal skin, these are not acne scars, and they often fade. However, you may have to take some active steps to clear your skin of acne scars (more on that later). If they are mild, they may become less noticeable over time. Learn more How long does it take for acne scars to fade?Īcne scars-those indented or raised areas of skin with a different texture than your original skin-usually don’t go away on their own.
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