What Causes Age Spots in Older Adults?

Age spots—many older adults are undoubtedly familiar with them. As people age, the body’s aging process accelerates, leading to deterioration in facial skin condition and making wrinkles and pigmented spots more likely to develop—especially age spots, whose incidence increases significantly with advancing age. So, what causes age spots? Let’s explore this together.

What Causes Age Spots?

Medically, age spots are also known as lentigines. They predominantly occur in older individuals and are closely associated with long-term sun exposure. As people enter old age, their metabolic rate declines, making bodily fats more susceptible to oxidation. This impairs cellular metabolism, hindering the elimination of pigment from the body. Over time, such pigment accumulates within skin cells, forming age spots. Additionally, factors such as chronic psychological stress, excessive fatigue, autonomic nervous system dysfunction, and diminished adrenal cortical function may also contribute to their development. Clinically, age spots typically appear as light brown, flat or slightly raised macules—ranging in size from that of a soybean to a broad bean—on the face or trunk.

How Are Age Spots Treated?

1. Laser Removal

Laser therapy is generally the first-line treatment for both freckles and age spots, offering rapid and visible results. Melanin selectively absorbs laser light at specific wavelengths; upon irradiation, melanin granules instantly fragment and rise to the skin surface, forming a thin crust. Once this scab naturally sloughs off, the age spot fades accordingly.

2. Topical or Systemic Medication

Vitamins nourish the skin and help mitigate skin aging. For instance, vitamin E capsules can be punctured and the oil applied directly to affected areas. Moreover, antioxidant capacity declines with age; oral vitamin supplementation helps enhance the antioxidant function of red blood cells.

The above outlines the primary causes of age spots—predominantly affecting older adults and strongly linked to prolonged sun exposure and declining metabolic function. We hope this information proves helpful to you.