Solar keratosis does not always look the same and ranges from barely visible rough patches on the skin to red, pink and tan scaly sores and scabs, according to the Skin Cancer Foundation. Solar keratosis, is also known as actinic keratosis, notes the American Academy of Dermatology.
Most solar keratosis lesions appear on the face, lips, ears, appendages and bald scalps, according to Mayo Clinic. The lesions develop from too much exposure to the sun and sun damage. The lesions are often not noticed at first because they are too small. However, they can be felt at this early stage due to their rough sandpaper texture, reports the Skin Cancer Foundation. People with solar keratosis are at a higher risk for developing all kinds of skin cancer.