There are more than ten different opinions about hemorrhoids in the medical field. It can be said that the public is reasonable, the mother-in-law is reasonable, and a hundred schools of thought contend and a hundred flowers blossom. There is a feeling that the explanation is not clear and the way is unclear, which makes people confused. However, there is a consensus on the issue of why hemorrhoids occurs. It is generally believed that it is related to the following factors:
1. Human upright position
According to the survey: monkeys, cattle, sheep, dogs, rabbits, cats and other quadruped animals do not suffer from hemorrhoids, while upright humans are prone to hemorrhoids. Therefore, some people think that hemorrhoids is a special disease that evolved from reptile animal to upright human, and the local evolution of posterior rectum and anus failed to develop to adapt to upright posture. From the anatomical point of view, the superior rectum vein and its branches have no venous valve. When the superior rectal vein and its branches flow back to the heart through the rectum muscle layer from the bottom to the top, under the influence of geocentric attraction, it is easy to have blood stasis and varicose veins.
2. Abnormal defecation
Long term habitual constipation, dysdefecation difficulty or diarrhea, or people who like to squat in the toilet to read books and newspapers, because of forced defecation, or squat too long, it is easy to lead to anorectal congestion, compression, varicose veins, as time passes, anal pad tissue relaxation, or even lead to pull fixed anal pad muscle fracture, anal pad out of the anus and form serious hemorrhoids.
3. Infection
Dysentery, enteritis, parasites (such as pinworm, etc.), anal crypt inflammation, perianal abscess, anal fistula, etc., can cause perihemorrhoid phlebitis or hemorrhoid phlebitis, causing hemorrhoid vein congestion and expansion, leading to hemorrhoids.
4. Bad eating habits
Drinking a lot of alcohol and eating spicy food, such as hot pepper, mustard, pepper, ginger and other stimulating food, also easy to cause rectal mucosa anal skin irritation, local congestion, burning pain, become the cause of hemorrhoids or aggravating the disease.
5. Pregnancy, delivery and pelvic and abdominal diseases
When pregnant, the fetus oppresses pelvic vein, causing blood stasis in the lower part of rectum, causing vasodilatation. The influence of endocrine hormone during pregnancy can make the pelvic blood vessels and rectal blood vessels dilate and produce hemorrhoids, and the hemorrhoids symptoms after delivery will be naturally relieved. Abdominal and pelvic tumors such as colon, rectal tumor, ovarian tumor and uterine fibroids oppress pelvic vein, which can cause blood stasis and expansion of the upper rectal vein and induce hemorrhoids.
6. Nature of work
In addition to the above factors, there are many reasons for anal congestion in daily life, such as working in the same posture for a long time without moving, which is also one of the reasons. Among the people who often work standing up (such as school teachers), people sitting at work (drivers) and people with heavy workload (such as porters), many of them suffer from hemorrhoids, which is the reason. In addition, athletes who need instant abdominal pressure are also prone to hemorrhoids. ?
7. Accumulated labor
Accumulation of labor is also an important factor causing hemorrhoids. At the end of the year, the number of patients with anal prolapse and anal swelling unable to press back hemorrhoids (Incarcerated Hemorrhoids) will increase, probably because of the busy work during this period, or entertainment all night before and after the Spring Festival. These people tend to be overworked and lack of sleep. Moreover, they will be sedentary when drinking alcohol or playing mahjong. Accumulation of fatigue, will support the anal pad of fine fiber tension relaxation, internal hemorrhoids easily prolapse.