Only a few cases of colon perforation during percutaneous nephrolithotomy (PCNL) have been reported. We present here a case of colon perforation during PCNL that was managed conservatively by stenting the urinary tract, using the percutaneous catheter as the colostomy tube, and giving broad-spectrum antibiotics. This report also reviews the anatomic and technical access to the kidney and reminds the urologist about this rare but serious complication of PCNL.