Bacterial and fungal skin infections are common in tropical medicine. They represent a spectrum of diseases somewhat different from the presentations seen in temperate and cooler climates. Some are typically exotic and confined to specific geoclimatic regions. Other more common conditions have different rates of prevalence according to regional effects. Travelers coming back from tropical regions and immigrants from these geoclimatic environments possibly transfer such dermatoses to Western residents. The global warming climate change in the world progressively alters some regional distributions of arthropod-borne-infectious diseases. The future must be framed by considering such world climatic changes responsible for progressive migration of vector-transmitted diseases inside temperate geoclimatic regions. Crowds of immigrants from warring regions eventually represent a distinct population at risk for other groups of dermatoses.