Most people have some form of skin lesions such as moles, freckles or skin tags. These are usually caused by exposure to the sun and can darken over time. Mostly, these are benign and are not a cause for concern. If you notice any change in shape or colour, you should always consult a doctor. Lipomas are found just under the skin. These are made up of fat tissue and are soft to touch, movable and painless. If a lipoma becomes painful or continues to grow, it can be removed surgically.