MEDLINEplus Health Information: Return to home page   A service of the National Library of Medicine: Go to NLM home page
Search     Advanced Search    Site Map    About MEDLINEplus    Home
Health Topics: conditions, diseases and wellness Drug Information: generic and brand name drugs Dictionaries: spellings and definitions of medical terms Directories: doctors, dentists and hospitals Other Resources: organizations, libraries, publications, MEDLINE

Medical Encyclopedia

Disease     Injury     Nutrition     Poison     Special     Surgery     Symptoms     Tests


Thumbsucking
 
Overview   

Thumbsucking



Information:

Definition:
Thumbsucking is the process of sucking on the thumb for oral gratification. It is a powerful need in infants, and is a normal activity with its peak occurrence at about age two. If thumbsucking continues past age 4, malocclusion of the teeth (abnormal contact between the teeth of the upper and lower jaw) may develop.

Sucking is the chief source of pleasure for an infant. Studies have found that sucking not associated with eating results in increased weight gain in premature infants and decreased crying. Thumbsucking is most prevalent when the child is hungry or tired.

Some parents are concerned with the thumbsucking and may even try to restrain the infant or child. In most cases this is not necessary. Should thumbsucking persist, and the child is listless and apathetic the situation should be investigated. This may result from depression, boredom, isolation, or a problem between the child and parent(s). Malocclusion may occur if the thumbsucking continues past 4 years of age, or until permanent teeth erupt.

There is no definitive treatment for persistent thumbsucking, but there are several documented options:
  • use of a bitter substance
  • contracting (making a mutual agreement with goals and rewards)
  • paradoxical therapy (where the situation is reframed psychologically so the child no longer finds it gratifying)
  • dental appliances (probably best and most effective option)



Adam

The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Copyright 2000 adam.com, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

Health Topics | Drug Information | Dictionaries | Directories | Other Resources