
20/06/2024
Hyperpigmentation, the darkening of the skin in certain areas, can result from various causes, including:
1. Sun Exposure: Ultraviolet (UV) rays from the sun stimulate the production of melanin, leading to tanning or sunspots, also known as solar lentigines.
2. Inflammation or Skin Injury: Conditions like acne, eczema, or psoriasis can cause post-inflammatory hyperpigmentation (PIH), where the skin darkens after healing.
3. Hormonal Changes: Conditions such as melasma are often triggered by hormonal changes, including pregnancy or oral contraceptive use.
4. Medications: Certain drugs, such as some antibiotics, anti-seizure drugs, and chemotherapy medications, can cause hyperpigmentation as a side effect.
5. Genetics: Some individuals are genetically predisposed to conditions like freckles or age spots.
6. Medical Conditions: Diseases such as Addison's disease or hemochromatosis can cause diffuse or localized hyperpigmentation.
7. Chemical Exposure: Contact with certain chemicals, such as those found in some cosmetics or industrial substances, can lead to hyperpigmentation.
8. Age: Aging can lead to the accumulation of pigmented spots, commonly referred to as liver spots or age spots.