[Histomorphology research of keloid in different regions].

In order to explore the mechanism of keloid and provide scientific basis for clinical treatment, we carried out a study on histomorphologic comparison of keloids of different tissues. Based on the histomorphologic features, a keloid was divided into three different parts: invasive, proliferative and aged parts. Its pathologic process was described as invasive period, proliferative period, stable period and aging period, to provide scientific basis for treatment.