Causes, Symptoms, Treatment, and More of White Sun Spots

White sun spots on the skin, clinically known as idiopathic guttate hypomelanosis (IGH), often result from sun exposure and tanning. These spots, characterized by a lack of skin pigment (hypopigmentation), are considered a cosmetic issue rather than a health concern. IGH can affect individuals of all skin tones but tends to be more noticeable on darker skin.

The exact cause of IGH remains unclear, though researchers attribute it to decreased melanin production triggered by factors like UV exposure, aging, and genetic predisposition. These spots typically appear on areas exposed to the sun such as the arms, legs, trunk, and face. They are small, irregularly shaped lesions ranging from 1 to 10 millimeters in size, often distinguished by their uneven borders.

While IGH doesn’t cause itching or pain, it can pose cosmetic concerns, prompting individuals to seek treatment. Options include topical creams and professional therapies aimed at minimizing the appearance of white spots. Over-the-counter (OTC) steroid and retinoid creams are common treatments, although results may be gradual and limited.

Dermatological interventions such as laser therapy, dermabrasion, cryotherapy, and chemical peels offer more effective results by stimulating melanin production or removing affected skin layers. These treatments can help improve skin texture and tone but may not completely eliminate the spots.

It’s essential to differentiate IGH from other skin conditions that cause white spots, such as vitiligo, milia, pityriasis alba, and tinea versicolor. Each condition has distinct characteristics and may require specific diagnostic approaches and treatments.

Consulting a dermatologist is recommended for accurate diagnosis and personalized treatment plans. Dermatologists can offer insights into managing white sun spots effectively, balancing cosmetic goals with skin health considerations. Overall, while IGH doesn’t pose health risks, addressing concerns about appearance and skin care can enhance quality of life for affected individuals.

Re-reported from the article originally published in Very well health.