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

1.结论结肠黑变病是结肠炎症、良、可逆以色素沉着为病变,该病发生与长期便秘服用蒽琨类泻剂有关。