| Bacterial arthritis | 2 quizzes |
| Bacterial gastroenteritis | 4 quizzes |
| Bartholin's abscess | 2 quizzes |
| Benign enlargement of prostate | 1 quiz |
| Beriberi | 3 quizzes |
| Biliary obstruction | 3 quizzes |
| Bird flu in humans | 3 quizzes |
| Bladder Cancer | 2 quizzes |
| Bladder infection | 4 quizzes |
| Bladder Stones | 3 quizzes |
| Bleeding esophageal varices | 1 quiz |
| Bleeding under conjunctiva | 3 quizzes |
| Bone infection | 3 quizzes |
| Bone tumor | 1 quiz |
| Botulism | 3 quizzes |
| Brain cancer | 1 quiz |
| Breast cancer | 1 risk assessment, 3 quizzes |
| Breast Enlargement In Men | 1 quiz |
| Breast Lump | 1 risk assessment, 2 quizzes |
| Brittle Bone Disease | 2 quizzes |
| Broken Nose | 1 quiz |
| Bronchitis | 1 quiz |
| Bronchopneumonia | 2 quizzes |
| Brucellosis | 2 quizzes |
| Bunion | 2 quizzes |
| Burkitt's Lymphoma | 2 quizzes |
| Burns | 3 quizzes |