| Subungual hematoma | |
|---|---|
| Other names | Runner's toe, tennis toe, skier's toe |
 | |
| Subungal haematoma of the fourth finger | |
| Specialty | Internal medicine, Podiatry |
| Symptoms | Discoloration of nail, pain |
| Risk factors | Poorly fitting foot wear, overtraining particularly hiking and running |
| Treatment | Usually unmerited, blood drainage or nail removal in serious cases |
| Prognosis | Usually self-resolving as nail grows out |
A subungual hematoma is a collection of blood (hematoma) underneath a toenail or fingernail. It can be extremely painful for an injury of its size, although otherwise it is not a serious medical condition.