This is the most important element of the hand. A weak or strong thumb indicates a similar personality. If the thumb is large and dominates the hand, it suggests a person who likes to rule.
A medium thumb, which starts from the middle of the hand and is about the same length as the little finger, shows a moderate ego, sensitivity to the needs of others, and an ability to speak for them if necessary.
A high thumb that reaches near the middle joint of the index finger indicates an excessive ego. If it is also wide, this person is ambitious and determined to achieve their goals. A long but slender thumb, however, suggests a person whose ambition is unclear due to a lack of motivation.
A low-set thumb indicates a practical person, possibly less intellectual, and a small ego.
The thumb has two parts; if the upper part is longer, the heart controls the head. Conversely, you are a person who relies solely on reason. A bulky or heavy upper part indicates a person who is very stubborn in their demands, possibly even bullying others.
The more flexible the thumb, the more adaptable the behavior. A rigid thumb indicates a person who is difficult to change but reliable. However, a thumb that can bend warns of a tendency to exaggerate the truth.