Finding | Classification | Relation between Diameter (d) and Height (h) | 600 Breasts (%) |
| I s | d ≤ h | 39 (6.5%) |
| I sp | d ≤ h +constriction | 25 (4.2%) |
| II s | d > h | 361 (60.2%) |
| II sp | d > h +constriction | 152 (25.3%) |
| III | Inverted nipple | 21 (3.5%) |
| IV | Unclassified | 2 (0.3%) |