1. Sun Exposure
Excessive UV exposure is one of the primary culprits behind dark spots. When the skin is exposed to sunlight, melanin production increases as a natural defense mechanism. Over time, this can lead to concentrated patches of melanin, resulting in sunspots or age spots.
2. Hormonal Changes
Hormonal fluctuations, particularly during pregnancy or due to oral contraceptives, can cause melasma, a type of hyperpigmentation characterized by dark patches on the face.
3. Post-Inflammatory Hyperpigmentation (PIH)
This occurs when the skin darkens after an injury or inflammation, such as acne, eczema, or a cut. PIH is especially common in people with darker skin tones.
4. Aging
As we age, our skinโs ability to regenerate slows down, making it more prone to developing dark spots.
5. Environmental Factors
Pollution and exposure to harmful environmental elements can trigger oxidative stress, leading to uneven skin tone and dark spots.
6. Certain Medications
Some medications, like chemotherapy drugs, can cause hyperpigmentation as a side effect.
7. Genetics
A predisposition to hyperpigmentation can be inherited, making some individuals more prone to dark spots.