Common Causes of White Spots
Idiopathic Guttate Hypomelanosis (IGH): This is one of the most common causes of small white spots, especially on sun-exposed areas like arms and legs. IGH occurs when melanin production decreases in certain patches, leading to tiny, round, white spots. It is generally harmless and often associated with aging or prolonged sun exposure.
Sun Damage: Overexposure to the sun can damage skin cells and reduce pigment in certain areas, creating white patches. Sunscreen and protective clothing can help prevent further spots.
Fungal Infections (Tinea Versicolor): A mild fungal infection can cause discolored patches on the skin, sometimes appearing white. These patches may spread or become more noticeable in humid conditions.
Nutritional Deficiencies: Lack of certain vitamins and minerals, such as calcium, vitamin D, or vitamin B12, may contribute to changes in skin pigmentation.
