Brown spots or pigmented lesions on the face, chest, legs and hands are common as skin ages. In most cases they are caused by sun exposure and can be successfully treated or removed.
Melasma is a pigment disorder that causes brown patches on the cheeks, nose, forehead, chin, or upper lip. Hormones are thought to be a trigger and it often appears during pregnancy which is why it’s commonly referred to as “the mask of pregnancy”. Sun exposure can make it more pronounced. Melasma can sometimes disappear on its own after pregnancy or when hormonal triggers are eliminated, but for many the condition requires long term management.