A microneedle includes a substrate, and projections which extend from a surface of the substrate. Each of the projections includes layers separated from each other in a direction in which the projection extends. The layers include a first layer which contains a polymer which is soluble in water and poorly soluble in oil and a second layer which contains a polymer that is soluble in oil. The first layer and the second layer are adjacent to each other and are formed in the order of the first layer and the second layer from the projection to the substrate.
