Stent

A stent having a central axis that extends in a longitudinal direction of the stent, the stent comprising:

• a first strand group having a plurality of first strands;
• a second strand group having a plurality of second strands, the first strand group and the second strand group being woven together;
• a dense part formed at both ends of the stent;
• and
• a sparse part formed at a central part of the stent, wherein
• the first strand group is wound in a right-handed spiral around the central axis,
• the second strand group is wound in a left-handed spiral around the central axis,
• a maximum diameter of each of the plurality of first strands constituting the first strand group is less than a maximum diameter of each of the plurality of second strands constituting the second strand group,
• in the sparse part, a number of the first strands is less than a number of the second strands, and
• at least one distalmost end of at least one of the plurality of first strands is disposed between one of the dense parts and the sparse part.