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一、定义:俗语常说:“十男九痔”,即说明痔在我国是很常见的,但其发生在性别上并无显著差别。痔乃是由于肛管直肠部静脉丛的静脉曲张所致。由于曲张静脉在解剖位置上的不同,位于梳状线以上的上痔静脉曲张而形成之痔叫内痔,而梳状线以下的下痔静脉曲张形成的痔叫外痔。也有由于长期内痔的存在,通过痔上下静脉之间互相吻合的痔中静脉的曲张,而引起痔下静脉的曲张,这种痔叫混合痔(图1)。
First, the definition: As the saying goes: “Ten men and nine hemorrhoids,” that is hemorrhoids in our country is very common, but there is no significant gender differences. Hemorrhoids but due to anal rectal venous plexus caused by varicose veins. Due to varicose veins in the anatomical position is different, located above the comb line on the hemorrhoidal varicosis hemorrhoids called internal hemorrhoids, and comb line below the hemorrhoid hemorrhoids hemorrhoids called external hemorrhoids. There are also due to the presence of long-term hemorrhoids, hemorrhoids through the upper and lower veins between the vein varicose veins, causing varicose veins, hemorrhoids called mixed hemorrhoids (Figure 1).