A number of cutaneous conditions can occur on the skin and appear to move or migrate through the skin.
| Condition | Maximum rate of migration |
|---|---|
| Cutaneous larva migrans | 2 cm/day |
| Larva migrans profundus (Gnathostomiasis) | 24 cm/day |
| Larva currens | 10 cm/hour [1] |
| Erythema gyratum repens | 1 cm/day |
Epidermolytic ichthyosis (EI), is a rare and severe form of ichthyosis that affects around 1 in 300,000 people. It is caused by a genetic mutation, and thus cannot be completely cured without some form of gene therapy.