First of all, it is important to clarify that occipital bump is a normal part of our human body, it is a small bump on the occipital bone that everyone has, with slight variations in size and shape. It is also an external sign on the outside of our head, and is usually used to measure the circumference of the head in infancy and childhood, so there is no need to worry about it. However, if a new bump appears in the occipital region in addition to this bump, the occipital tuberosity, then we need to consider the possibility of an occipital osteoma. Occipital osteoma is a benign tumor that develops in childhood and grows slowly; if it grows faster, you need to have your doctor help examine it.