Conclusion Melanosis coli is inflammation,benign,reversibility chromatosis as characteristic,the disease is related to taking anthracene for long time constipation.

• 结论结肠黑变病是结肠的一种非炎症性、良性、可逆性的以色素沉着为特征的病变,该病的发生与长期便秘服用蒽琨类泻剂有关。