Izuku is somewhat short for his age, his round face is framed by a short mop of fluffy dark-green hair which curls up at angles around his head, casting noticeably dark shadows onto itself. His eyes are large and somewhat circular, their irises the same shade of green as his hair, which at times are very watery, and are usually stretched quite wide, giving him an innocent appearance. Izuku is a very timid, reserved, and polite boy, frequently overreacting to abnormal situations.