A linear member for medical use having stretchability and flexibility while maintaining sufficient strength is developed. The linear member for medical use includes: an inner helical body including a plurality of helically wound wires, the inner helical body including a space portion inside, gap portions being provided in an axial direction between each wire and an outer helical body provided outside of the inner helical body including a plurality of wires helically wound in such a manner to form a layer along an axis of the helical body and a helical direction of the outer helical body is opposite to that of the inner helical body with gap portions being provided between each of the wires, the outer helical body being disposed to provide a multilayer structure. Consequently, a linear member for medical use maintaining stretchability and flexibility while having strength that enables application of sufficient fastening force, which prevents a bone from being damaged, can be provided.
