Objective: To determine incipient industrialisation health impact on the population of a mining Peruvian mountain city. Material and Methods: Retrospective descriptive study that reviewed Regional City Medical Hospital patient’s records seen from 1996 through 2001, searching for environmental related illnesses. We used growth indexes and compared them statistically with environmental indexes by logistic regression using the SPSS/6,1. Results: We found significant correlation (95% confidence index) between industrial growth indexes and health status, such as increase of the number of vehicles and respiratory illnesses (p=0,0001), number of vehicles and dermatological illnesses (p=0,0003), number of vehicles and conjunctivitis (p=0,0001). Significance was less when comparing gold/silver production (p=0,01, 0,003 and 0,0045, respectively) with lead mining production (p=0.03, 0,001, and 0,...