- Babysitters
- Battered Child Syndrome
- Bayley Scales of Infant Development
- Bed-Wetting
- Beery-Buktenica Test
- Bejel
- Bell's Palsy
- Biliary Atresia
- Bilingualism/Bilingual Education
- Bilirubin Test
- Binge Eating Disorder
- Bipolar Disorder
- Birth Order
- Birthmarks
- Bites and Stings
- Blood Sugar Tests
- Bonding
- Botulism
- Brachial Plexopathy, Obstetric
- Breast Development
- Breath Holding Spells
- Breech Birth
- Bronchiolitis
- Bronchitis
- Bruises
- Bruton's Agammaglobulinemia
- Bulimia Nervosa
- Bullies
- Burns
