What are round light brown circles on the skin?

Round, light brown circles on the skin could be a number of things, such as:

* Birthmarks: Birthmarks are usually present from birth and do not change much in appearance over time. They can vary in color from light brown to dark brown and are often round or oval in shape.

* Solar Lentigines (Sun Spots): Solar lentigines are flat, round, and pigmented spots on the skin that develop due to sun exposure. They are common in areas that are frequently exposed to the sun, such as the face, hands, and arms.

* Cafe Au Lait Spots: Café au lait spots are light brown, non-raised, round or oval spots that are commonly found in individuals with certain genetic conditions, such as neurofibromatosis. They are usually larger than birthmarks and can appear anywhere on the body.

* Melasma: Melasma is a skin condition characterized by the development of dark patches on the skin, often on the face, that are caused by hormonal changes or sun exposure. It commonly occurs in women and is more prevalent during pregnancy.

* Lentigines Simples: Lentigines simples, also known as simple freckles, are small, flat, round, and light brown spots that are distributed over the sun-exposed areas of the skin. They are caused by an increased production of melanin in the skin due to sun exposure.

* Mycosis Fungoides: Mycosis fungoides is a type of cutaneous T-cell lymphoma, a cancer of the white blood cells in the skin. In its early stages, it can present with round or oval, light brown spots on the skin that may become scaly and itchy over time.

It is recommended to consult a dermatologist if you notice any new or changing round light brown circles on your skin for an accurate diagnosis and proper management.