What is hemorrhoid?

Hemorrhoids are common and frequently-occurring diseases of anus, and the inducing factors of hemorrhoids mainly include the following points:

1, professional relationship. Standing for a long time or sitting for a long time affects venous return, hemorrhoid veins are overfilled, and blood stasis is dilated.

2, local stimulation and unclean diet. Cold and heat in anus, constipation and diarrhea, excessive drinking and eating spicy and irritating food can stimulate the anus and rectum to cause local congestion and blood reflux disorder, reduce the resistance of vein wall and increase the pressure in hemorrhoid vein.

3. Anatomical reasons. When standing or sitting, the anus and rectum are pressed by gravity and internal organs, and the upward reflux of veins is blocked, making it difficult for blood to return. Hemorrhoid veins pass through the loose tissue of submucosa, and there is no stent around them, which is easy to expand and flex.

4. Increased intra-abdominal pressure. Because of intra-abdominal tumor, pregnancy, overeating or constipation, sitting in the toilet for too long will increase intra-abdominal pressure and anal venous pressure, which will hinder venous blood return.

5, anal local stimulation. Hemorrhoid veins are congested and edematous repeatedly, and the elastic tissue of vein wall gradually becomes fibrotic and weak, resulting in swelling and varicose veins due to insufficient resistance, which gradually aggravates varicose veins and produces hemorrhoids.