| STAGE A | STAGE B | ||
USG Findings | Stage 1 | Stage 2 | Stage 3 | Stage 4 |
No abnormality | 6 | 7 | 12 | 6 |
Endometrioma | 1 | 2 | 10 | 11 |
Others | 3 | 5 | 10 | 16 |