End anorectal hospital showed that human rectal submucosal and anal canal skin venous plexus expansion and winding of soft vein group, called the hemorrhoid, also called hemorrhoids, haemorrhoids, hemorrhoids, hemorrhoids, etc.
肛肠医院表明：人体直肠结束粘膜下和肛管皮肤下静脉丛产生扩张和委曲所构成的柔软静脉团，称为痔，又叫痔疮 、痔核、痔病、痔疾等。
Common causes of hemorrhoids disease factors are:
1, anatomy reason: when the person is standing or seat, anal rectum is located in the lower part, because of gravity, viscera and feces squeezed, venous reflux popular up obstacles, winding that brief expansion, hemorrhoids.
2, genetic contact: congenital thin vein wall, resistance decrease, can't tolerate pressure within the blood vessels, thus gradually expanding.
3, homework contact: some homework crowd demand long standing or sitting or load for a long time travel, affect the venous return, make the pelvic congestion in the blood stream is slow and internal organs, the cause of excessive hemorrhoid venous filling, venous wall tension, expand blood vessel briefly blood stasis. And because of the lack of movement, intestinal peristalsis, feces descending slowly, or habitual constipation, lead to hemorrhoids.
Section 4, part and eating: the anus department form cold, heat, constipation, diarrhea, excessive drinking and eating spicy food, can affect the anus and rectum, make hyperaemia of hemorrhoid venous plexus, affect the venous blood backflow, so that decreased venous wall resistance.
5, the anal vein pressure heighten: due to liver cirrhosis, liver congestion and heart function of compensatory not congruent, all can make the anus venous congestion, increased pressure, rectal venous blood backflow.
常见的诱发痔疮疾病的要素有：
1、解剖学原因：人在站立或座位时，杭州医博肛泰医院说外痔疮肛门直肠位于下部，因为重力、脏器和粪便的压榨，静脉向上回流颇受障碍，简略扩张委曲，构成痔疮。
2、遗传联络：静脉壁先天性单薄，杭州医博肛泰医院说外痔疮抗力减低，不能耐受血管内压力，因此逐步扩张。
3、作业联络：某些作业的人群需求久站或久坐或长时间负重远行，杭州医博肛泰医院说外痔疮影响静脉回流，使盆腔内血流缓慢和腹内脏器充血，引起痔静脉过度充盈，静脉壁张力下降，血管简略瘀血扩张。又因运动缺乏，肠蠕动减少，粪便下行缓慢，或习惯性便秘，导致痔疮的产生。
4、部分影响和饮食不节：肛门部受冷、受热、便秘、杭州医博肛泰医院说外痔疮腹泻、过量喝酒和多吃辛辣食物，都可影响肛门和直肠，使痔静脉丛充血，影响静脉血液回流，以致静脉壁抵抗力下降。
5、肛门静脉压力增高：因肝硬化、杭州医博肛泰医院说外痔疮肝充血和心脏功用代偿不全等，均可使肛门静脉充血，压力增高，影响直肠静脉血液回流。
6、腹内压力添加：因腹内肿liu、杭州医博肛泰医院说外痔疮子宫肿liu、卵巢肿liu、前列腺肥胖、妊娠、饮食过饱或蹲厕过久等，都可使腹内压添加，阻挠静脉的血液回流。
6, intra-abdominal pressure added: because of abdominal swollen liu, uterus liu, ovarian swollen liu, obesity, prostate pregnancy, diet too full or squat toilet too long, can make the intra-abdominal pressure to add, obstruction of venous blood backflow.
