Yes, skin pigmentation can change over time due to various factors. Some of the reasons why skin pigmentation may change include: Sun exposure: Exposure to UV radiation can cause the skin to produce more melanin, resulting in a darker skin tone or the development of dark spots or hyperpigmentation. Aging: As we age, the skin may become thinner and more fragile, which can make blood vessels more visible and result in a duller, uneven skin tone. Hormonal changes: Hormonal changes during pregnancy or menopause can cause the skin to produce more melanin, resulting in hyperpigmentation or darkening of the skin. Medications: Certain medications, such as antibiotics, anti-inflammatory drugs, or chemotherapy, can cause changes in skin pigmentation. Skin trauma: Injuries, scars, or burns can cause the skin to produce more melanin, resulting in hyperpigmentation.