| Type | Description |
| 1 | Partial quantitative deficiency of vWF |
| 2 | Qualitative defects of vWF |
| 2A | Decreased vWF-dependent platelet adhesion and absence of vWF polymers |
| 2B | Increased binding affinity of vWF for platelets |
| 2M | Decreased vWF-dependent platelet adhesion; presence of vWF polymers |
| 2N | Markedly decreased binding affinity of vWF for factor VIII |
| 3 | Virtually complete deficiency of vWF |