| Primäre Ursachen | Sekundäre Ursachen | |
| Natürliche | Komplement- | Wunden | 
| Abwehr | defekte | Verletzungen | 
| Defekte der | Fremdmaterial | |
| Phagozytose | Obstruktion | |
| Adaptive | T-Zell-/B-Zell | Mangelernährung | 
| Abwehr | defekte | Neoplasien | 
| Infektionen | ||
| Therapien | 
| Komplement | Granulozyten | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | |
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| 
 | 
| T-Zellen | B-Zellen | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | 
 
| Granulozytopenie | T-Zellulärer Defekt | 
| __________________ | __________________ | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | |
| 
 | |
| 
 | |
| 
 | 
| Granulozytopenie | Knochenmarkstransplantation | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | |
| 
 | |
| 
 | 
| Bakterien | Pilze | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | 
 | 
| 
 | |
| 
 | |
| 
 | |
| 
 | |
| 
 | |
| 
 | |
| 
 |