2020年10月20日星期二

hemorrhoids external causes,Causes and classification of hemorrhoids

    Hemorrhoids is one of the most common anorectal diseases, which can occur at any age. It is often caused by constipation, excessive defecation, heavy lifting, coughing, childbirth, etc. that cause bleeding and thrombosis of the inferior hemorrhoidal venous plexus.

    Causes of hemorrhoids:

    Poor local blood return, causing vasodilation and congestion into hemorrhoids.

    ① There is no venous valve in the superior rectal vein, and the blood vessels pass through the abundant perianal muscles.

    ② Increased abdominal pressure during stool causes pressure.

    ③The tissues of the rectal submucosa are loose and the resistance around the blood vessel wall is weak.

    ④ Upright position, under the action of gravity.

    ⑤Located in the lowest part of the abdominal cavity.

    Bad bowel habits

    Squatting in the toilet too frequently and for too long can easily cause external hemorrhoids.

    Constant increase in abdominal pressure

    Pregnancy and enlarged prostate are also causes of external hemorrhoids.

    other reasons

    Hypertension, liver cirrhosis, arteriosclerosis, chronic inflammation of the anus and rectum, etc.

    Posture

    For example, sitting for a long time, standing for a long time, squatting for a long time, and walking for a long time are the causes of external hemorrhoids.

    There are three types of hemorrhoids:

    Internal hemorrhoids: bloody after the stool, usually not painful.

    External hemorrhoids: pain, usually without bleeding.

    Mixed hemorrhoids: There are both internal and external hemorrhoids.

    Simply put, a human is an animal that walks upright. There are 3 venous plexuses in the human body. The bottom is the "rectal anal venous plexus". Because of its low position and some external factors, such as constipation, cough, pregnancy, etc., abdominal pressure Increased height causes the expansion of blood vessels to form hemorrhoids. Some hemorrhoids can shrink or disappear on their own. However, some hemorrhoids need treatment because of the location of the disease and the size and nature of the hemorrhoids. The final treatment is surgery.

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