Skin spots are areas of the skin that are a different color from the rest of the surrounding skin. They can vary in size, shape, and color, and can be caused by a variety of factors. Some of the most common causes of dark spots on the skin include: 1. Sun Exposure: Prolonged exposure to the sun can cause dark spots on the skin, known as sun spots or age spots. These spots are caused by excessive production of melanin, the pigment responsible for skin color. 2. Acne: Acne can leave dark or red patches on the skin after the lesions have healed. These spots are known as acne blemishes and can take a long time to fade. 3. Melasma: Melasma is a condition in which dark patches appear on the skin, usually on the face. This condition is related to hormonal changes and may be more common in women who are pregnant or taking oral contraceptives. 4. Freckles: Freckles are small, flat brown spots that appear on the skin, especially in people with fair skin. They are caused by an accumulation of melanin in certain areas of the skin. 5. Moles: Moles are brown or black spots that can appear anywhere on the body. They are caused by an excessive growth of pigmented cells in the skin. It's important to note that some skin blemishes may be benign, while others may be a sign of an underlying medical condition. If you have any concerns about blemishes on your skin, it is advisable to see a dermatologist for a proper diagnosis and proper treatment if necessary.

Actinic Keratosis

Actinic keratosis (AK) may be the first step in developing skin cancer. They are common lesions of the epidermis (outermost layer of the skin) and are caused by exposure to sunlight. The most important predisposing factors for the development of QA are fair skin and long-term sun exposure.

Signs and symptoms



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