- Home
- Humana Medicaid
- Kentucky Medicaid
- Medicaid extras
- Health and wellness
- Home
- Parents Home
- Allergy Center
- Asthma Center
- Cancer Center
- Diabetes Center
- A to Z Dictionary
- Emotions & Behavior
- First Aid & Safety
- Food Allergy Center
- General Health
- Growth & Development
- Flu Center
- Heart Health
- Homework Help Center
- Infections
- Diseases & Conditions
- Nutrition & Fitness Center
- Play & Learn Center
- School & Family Life
- Pregnancy Center
- Newborn Center
- Q&A
- Recipes
- Sports Medicine Center
- Doctors & Hospitals
- Videos
- Para Padres
- Home
- Kids Home
- Asthma Center
- Cancer Center
- Movies & More
- Diabetes Center
- Getting Help
- Feelings
- Puberty & Growing Up
- Health Problems of Grown-Ups
- Health Problems
- Homework Center
- How the Body Works
- Illnesses & Injuries
- Nutrition & Fitness Center
- Recipes & Cooking
- Staying Healthy
- Stay Safe Center
- Relax & Unwind Center
- Q&A
- Heart Center
- Videos
- Staying Safe
- Kids' Medical Dictionary
- Para Niños
- Home
- Teens Home
- Asthma Center
- Be Your Best Self Center
- Cancer Center
- Diabetes Center
- Diseases & Conditions
- Drugs & Alcohol
- Expert Answers (Q&A)
- Flu Center
- Homework Help Center
- Infections
- Managing Your Medical Care
- Managing Your Weight
- Nutrition & Fitness Center
- Recipes
- Safety & First Aid
- School & Work
- Sexual Health
- Sports Center
- Stress & Coping Center
- Videos
- Your Body
- Your Mind
- Para Adolescentes
Thumb Hypoplasia
Also called: Hypoplastic Thumb
What Is Thumb Hypoplasia?
Babies with thumb hypoplasia are born with a thumb that is smaller than normal, or with the thumb missing completely. Sometimes the bones of the wrist or arm are smaller or missing too. Thumb hypoplasia can happen on one or both hands.
What Causes Thumb Hypoplasia?
Thumb hypoplasia develops before a baby is born. When a baby's hands are first forming, they are shaped like mittens. Then the fingers and thumb develop. In babies with thumb hypoplasia, the thumb does not form completely. Thumb hypoplasia is not caused by anything a mother did or did not do while pregnant.
Who Gets Thumb Hypoplasia?
Any baby can be born with thumb . Sometimes, it happens as part of a genetic.
How Is Thumb Hypoplasia Diagnosed?
A prenatal ultrasound might show thumb hypoplasia. Otherwise, doctors diagnose it when a baby is born.
X-rays of the bones in the thumbs and hands will help the surgeon decide on the best kind of treatment. Other tests might be done to see if the thumb hypoplasia is part of a genetic syndrome.
How Is Thumb Hypoplasia Treated?
The thumb is a very important part of the hand. Surgery is usually recommended to improve a small or weak thumb. If the thumb is missing, the index finger can be made into a new thumb (this is called ).
Before and after surgery, occupational therapy (OT) and home exercises can help a child learn to use the thumb and other fingers.
What Else Should I Know?
After treatment, most children with thumb hypoplasia learn to do all the usual things that kids do. Offer support as your child learns how to use their hands well.
Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
© 1995- The Nemours Foundation. KidsHealth® is a registered trademark of The Nemours Foundation. All rights reserved.
Images sourced by The Nemours Foundation and Getty Images.