A pockmark is a small, shallow depression or scar on the surface of the skin, often resulting from conditions like acne, chickenpox, or other skin infections. These marks can vary in size and depth, affecting the skin's texture and appearance. Pockmarks are typically more noticeable on the face, but they can occur on other parts of the body as well. In geology, a pockmark refers to a depression on the seabed caused by the escape of gas or fluid from beneath the Earth's surface. These features can indicate the presence of natural gas reserves and are often studied in relation to marine geology and environmental science.