why do black spots appear on skin

The appearance of black spots on your skin could indeed be due to several reasons, and understanding the underlying cause is crucial for accurate treatment. One common cause is hyperpigmentation, which includes age spots, also known as liver spots, resulting from sun exposure over time. Even without frequent sun exposure, cumulative exposure can trigger these spots as you age. Another possible reason is post-inflammatory hyperpigmentation, typically occurring after an injury or skin inflammation where the skin produces extra pigment. Telangiectasia, which the dermatologist mentioned, involves small blood vessels becoming visible and is typically benign, but it usually presents as red, not black spots.

Additionally, seborrheic keratosis could be a factor; these are non-cancerous skin growths appearing with age, often with a waxy, scaly appearance. The dermatologist’s suggestion for a biopsy is a careful step to exclude serious conditions like melanoma, a type of skin cancer that can present as dark spots. Melanoma often features asymmetrical shapes, irregular borders, or color variations, so a biopsy helps ensure nothing more serious is going on. While the idea of a biopsy might be worrying, it’s a straightforward procedure and quite effective in diagnosing or excluding skin cancer. Until your biopsy, keep an eye on the spots for any rapid changes in size, shape, or color. Try to protect your skin from the sun with broad-spectrum sunscreen, even on cloudy days, as UV can affect your skin even then. Ultimately, addressing any sudden or concerning changes in your skin with a medical professional, just as you’ve done, is the best approach to ensure you’re managing any risks appropriately.