A medical tube (10) which is relatively thin in thickness over its entirety while an outer layer (11) and an inner layer (16) are preferably prevented from being separated from each other. A medical tube includes a first layer (11) and a second layer (16) that is provided adjacent to an inner circumferential surface of the first layer. The medical tube also includes a wedge-shaped convex portion that is provided on an outer circumferential surface of the second layer so as to be widened in width radially outward, and a concave portion that is provided on an inner circumferential surface of the first layer, with the convex portion and the concave portion engaging each other.
