Large pores on the cheeks are primarily caused by excess oil production, but genetics, aging, sun damage, and hormonal shifts all play a role. Unlike the forehead or nose, the cheeks lose structural support more visibly over time, which is why pores there can look increasingly prominent even if your skin wasn’t particularly oily in your teens.
Oil Production Is the Biggest Factor
The single strongest predictor of pore size is how much oil your skin produces. Each pore is the opening of a hair follicle, and attached to that follicle is a tiny oil gland. When those glands produce more oil, the opening stretches to accommodate the flow. Over time, that repeated stretching makes pores visibly larger. Research using multiple regression analysis found that oil output correlated more strongly with pore size than any other variable, including age and sex.
When excess oil mixes with dead skin cells, it can also form plugs inside the pore. These blockages physically push the walls of the follicle outward, making the pore appear larger or misshapen. This is essentially the same process behind blackheads, just happening on a subtler, wider scale across the cheek area.
Genetics and Ethnicity Set the Baseline
Your pore size is largely inherited. A large multiethnic study found that pore size, density, and skin coverage varied dramatically between ethnic groups, and that these differences were more significant than the effects of aging. Chinese subjects, for example, had significantly lower densities of visible pores compared to four other ethnic groups studied, while Brazilian women more frequently self-reported enlarged pores.
This variation ties back to inherited differences in skin thickness, oil gland activity, and hormonal sensitivity. If your parents had visibly large pores, you likely will too, regardless of your skincare routine. These structural features appear to be established around puberty, driven by growth factors and hormonal shifts that shape the oil glands and surrounding skin during adolescence.
How Aging Changes Pore Appearance
Pores on the cheeks tend to look larger with age, even though pore density actually plateaus in most people. The reason is structural: your skin loses its scaffolding. Collagen, the protein that keeps skin firm, breaks down steadily over time. As collagen degrades, the cells responsible for producing it (fibroblasts) shrink and become less functional. Those smaller, weaker fibroblasts produce even less collagen while simultaneously releasing more enzymes that break down what’s left. It’s a self-reinforcing cycle.
The result is skin that sags slightly around each pore opening. On the cheeks, where gravity pulls downward on relatively flat skin, this creates a teardrop or oval shape that looks bigger than the round pores you had at 20. The pore itself hasn’t grown, but the skin around it no longer holds it taut.
Sun Damage Weakens Pore Structure
Chronic UV exposure accelerates every aspect of the aging process described above. UV radiation triggers inflammation in the skin and activates signaling pathways that break down collagen and elastin. It also directly damages the structural cells around hair follicles, causing deterioration of the outer layers that give follicles their shape.
Because the cheeks are one of the most sun-exposed areas of the face, they take a disproportionate hit. Years of cumulative UV damage loosens the tissue surrounding each pore, making them appear wider and more prominent. This is one reason people with significant sun exposure history often notice their cheek pores looking larger than those on less-exposed areas.
Hormones Influence Pore Size Throughout Life
Androgens (the hormones responsible for oil production) directly affect how large your pores appear. Men generally have larger pores than women because they produce more androgens, which drive higher oil output. In the research, male sex was the second strongest correlate of pore size after oil production itself, and men showed a stronger link between oil levels and pore size (correlation of 0.47) compared to women (0.38).
Women experience pore size fluctuations tied to their menstrual cycle. Pore size increases significantly during ovulation, when hormonal shifts temporarily boost oil production. Pregnancy, polycystic ovary syndrome, and menopause can all shift this balance further. These hormonal swings help explain why some women notice their cheek pores looking worse at certain times of the month or during specific life stages.
Acne History Leaves a Lasting Mark
If you’ve dealt with inflammatory or cystic acne on your cheeks, the pores in those areas may be permanently stretched. Severe acne creates deep inflammation within the follicle, and as lesions heal, the surrounding tissue doesn’t always return to its original shape. The Cleveland Clinic notes that a history of severe or cystic acne is associated with dilated pores, where dead skin cells and protein collect inside the follicle, plugging and enlarging it over time.
Even moderate acne that was never formally treated can leave behind slightly widened pores. Each inflammatory episode weakens the follicle wall a little more, and after enough cycles of swelling and healing, the pore simply stays stretched.
Pores Can’t Open or Close
One persistent misconception worth clearing up: pores don’t have muscles. The tiny arrector pili muscle attached to each hair follicle is responsible for goosebumps, not for opening or closing the pore itself. Steam won’t “open” your pores, and cold water won’t “shrink” them. What these treatments can do is temporarily affect oil flow or reduce inflammation, which changes the appearance of pores without altering their actual size.
What Actually Reduces Pore Appearance
Since pore size is largely structural, no product will eliminate visible pores entirely. But certain approaches can make a measurable difference. Prescription retinoids are the most studied option. In one clinical trial, 42 percent of people using a retinoid daily for 24 weeks achieved visible pore reduction on a physician-rated scale, compared to just 20 percent improvement with a placebo. A separate study found significant pore size reduction after 90 days of daily use of a lower-strength retinoid cream.
Retinoids work by increasing cell turnover, which prevents the dead skin buildup that stretches pores, and by stimulating collagen production, which tightens the skin around each opening. Over-the-counter retinol works on the same principle but at a slower pace. Consistent daily sunscreen is equally important: preventing further UV-driven collagen loss stops pores from getting worse, even if it doesn’t reverse existing damage.
Managing oil production also helps. Products containing niacinamide or salicylic acid can reduce the amount of oil sitting in and around pores, making them appear smaller. These won’t change the physical structure of the pore, but they address the most influential factor in how prominent pores look on a day-to-day basis.