World Health Organization definition6 | 1–5 patches associated with leprosy | > 5 patches associated with leprosy |
Bacterial count | None | Many |
Severity | Mild | Can be extreme |
Symmetry | Asymmetric | Symmetric |
Borders | Well demarcated, elevated | Poorly demarcated |
Infectivity | Very limited | Possibly more infectious |
Prognosis | Good with treatment | Poor without treatment |