When a large blackhead—composed of dead skin cells, sebum, and other debris—accumulates within a pore and remains there for an extended period, the surrounding skin gradually stretches.
Over time, this prolonged stretching can cause the skin to lose its natural elasticity.
As a result, when the blackhead is eventually removed, the pore may not fully contract back to its original size. Instead, it can remain visibly enlarged, leading to what is known as a dilated pore of Winer, as seen in this photo.
Fortunately, there are treatment options available.
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