The cause of rhinophyma is not fully understood.
- Enlarged blood vessels may predispose to skin thickening.
- Vascular instability may lead to leakage of fluid into the tissues. This subsequently triggers inflammation and scarring.
Rhinophyma predominantly affects men. The male-to-female ratio in patients with rhinophyma ranges from 5:1 to 30:1. This is possibly due to androgens (male hormones).