An object of the invention is to propose a medical cap that is easy for a user to wear, has a suitable degree of heat-insulating effectiveness, and can be used as the inner cap of a helmet for a scalp-cooling device that cools the scalp. A medical cap (100) of the invention is made of a fabric body formed to cover a human head, and includes a frontal region (11) that covers the forehead including the brow, an occipital region (12) that covers the occipital, a main body (1), including a nape region (13) for covering the nape, and connected thereto, a left temporal member (2) and a right temporal member (3), wherein the left temporal piece (2) and the right temporal piece (3) respectively connected to the main body (1) form rear end-ward finlike protrusions (20) and (30), and cuts formed between the finlike protrusions (20) and (30) and the nape region (13).
