Disclosed herein is a catheter for a left coronary artery having a distal end for being introduced into an opening of the left coronary artery from an artery of an arm. The catheter can include a catheter main body including a main body portion of a substantially linear shape in a natural state thereof and a curved portion extending from the main body portion to form a portion that extends to the distal end and has a curved shape in a natural state thereof.
