Thumb sucking is a common habit in infants and young children, often starting in the womb and providing comfort or self-soothing. While it is typically harmless in early childhood, prolonged thumb sucking past the age of 4 or 5 can cause dental issues, such as misaligned teeth or changes in the roof of the mouth. Psychologically, it may signal anxiety or stress in older children. Parents are encouraged to gently discourage the habit if it persists, using positive reinforcement or seeking professional advice if necessary. In most cases, children outgrow thumb sucking on their own by adolescence.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.