see Frostbite
| INJURY | MECHANISM | CLINICAL FEATURES |
| Frost nip | Superficial cold injury | Transient paraesthesia which resolves with rewarming |
| Chill blains | Repeated cold-dry injury | Cold sores (esp. face, dorsum hands and feet, pretibial surface) |
| Trench foot | Non-freezing cold-wet injury | Pale/cool/Paraesthesia Cyanotic/cold/oedematous Erythematous/Dry/Painful (after rewarming) |
| Frostbite | Deep cold injury | Numbness 'Clumsiness' 'Chunk of wood' sensation Anaesthesia Mottled/Violet/Shiny/Waxy (esp. hands/feet/nose/ears/penis) |