What is a potential cause of spots on the skin?

Blocked pores can lead to the formation of spots on the skin, commonly known as acne. When hair follicles or pores become clogged with excess oil, dead skin cells, and bacteria, it creates an environment conducive to inflammation and the formation of spots. The body may respond by sending white blood cells to the area, resulting in redness and pus-filled lesions. This condition is especially common during puberty due to hormonal changes that increase oil production in the skin.

While the other factors provided—excessive hydration, pollution, and sun exposure—can also affect skin health, they do not directly cause blocked pores in the same way. Pollution, for instance, can contribute to skin irritation and may exacerbate existing skin conditions, but it primarily disrupts skin barrier function rather than clogging pores directly.