Skin diseases A-Z Skin diseases H – K Hypomelanosis Guttate Idiopathic January 30, 2025 / August 12, 2026 by Dick van Gerwen | Leave a Comment Symptoms The main symptoms of idiopathic guttate hypomelanosis include: Small, well-defined, round or oval white spots on the skin. Spots usually appear on sun-exposed areas of the body such as the forearms, shins, and shoulders. The condition is typically asymptomatic, meaning there is no itching or pain associated with the spots. Causes The exact cause […] Read more » hypomelanosis guttata idiopathica idiopathic guttate hypomelanosis Idiopathic skin condition Loss of pigment Pigment loss Pigmentation disorders Skin abnormalities from sun exposure Skin changes due to aging Skin changes from sun skin discoloration Skin problems from sun Small white spots on the skin Sun spots Sun-damaged skin Treatment for hypomelanosis guttata idiopathica white spots on the skin