The distance from the midclavicular line to the anterior midline is generally 5-7 cm in adults, but this distance from the midclavicular line to the midline is not clinically significant. For example, the midclavicular line of a child is definitely smaller than the midclavicular line of an adult, and the midclavicular line of a thin person is definitely smaller than the midclavicular line of an obese person. It has a relationship with the body shape of the person, so the distance varies greatly and is generally not clinically significant. The distance from the midclavicular line to the median line can be estimated approximately, and the distance of the width of a hand is the distance from the midclavicular line to the median line.