Pigmentation & Redness
흑자
A brown spot with a relatively clear border; a considerable share of the lesions commonly called sun spots fall into this category.
Long-term sun exposure is often involved, so they readily arise in areas that frequently receive sunlight, such as the face, the backs of the hands and the outer arms.
For a spot whose colour suddenly darkens or whose shape and border change irregularly, it is safer to have it assessed at a consultation rather than judging for yourself.
This entry is general medical information provided to aid understanding. It does not guarantee the results of any specific treatment or product, and diagnostic and treatment methods and their outcomes may differ depending on each person's condition. Please confirm the details through a medical consultation.

Graduate of Kyung Hee University School of Medicine (Magna cum laude) · Former director of Plus Hu Clinic, Girin Plastic Surgery, and DA Plastic Surgery · Regular member of the Korean Academy of Filler, Korean Academy of Aesthetic Plastic & Laser Medicine, Korean Academy of Laser, Dermatology and Trichology (KALDAT), Korean Lifting Research Society (KAFC), Korean Association of Obesity Research Physicians, and Korean Society for the Study of Obesity · Thermage User Training Course certified expert
The medical information on this page was written and reviewed by the director of Mason Clinic. Treatment results may vary from person to person. · Last reviewed 2026-08-15