How is internal hemorrhoids bleeding caused?

Written by Deng Heng

Colorectal Surgery

Updated on February 05, 2025

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Internal hemorrhoids bleeding is caused primarily by venous dilation and congestion. Anatomically speaking, hemorrhoids are varicose veins, which means they contain a lot of fresh blood. When straining during defecation, the hemorrhoids rub against the dry stool, causing the mucous membrane of the hemorrhoids to rupture and leading to bleeding symptoms. When the bleeding symptoms are mild, blood can be seen in the stool during defecation, or drops of blood may appear during bowel movements. In severe cases, spraying bleeding may occur. Generally, the bleeding stops after defecation.

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Written by Chen Tian Jing

Colorectal Surgery

1min 7sec

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Can internal hemorrhoids lead to anemia?

Internal hemorrhoids bleeding easily leads to anemia in patients, especially when internal hemorrhoids bleed frequently and recurrently, or each bleeding episode is relatively severe, potentially causing a trend of decreased blood volume in patients. When blood volume reaches a certain threshold, symptoms of anemia can appear. If the anemia is assessed as mild or moderate, besides using local hemostatic hemorrhoid creams or suppositories, patients can also take oral traditional Chinese medicine that supplements qi and generates blood for symptomatic treatment, to enhance body immunity and physical constitution. If anemia primarily presents as severe, to avoid further exacerbation of anemia or impairment of overall organ functions, it is recommended that patients undergo surgical ligation for hemostasis and, if necessary, blood transfusion. (Medication should be used under the guidance of a doctor.)

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Written by Yu Xu Chao

Colorectal Surgery

1min 10sec

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Does pressing on an internal hemorrhoid cause pain?

If internal hemorrhoids prolapse and become incarcerated or a thrombus forms locally, pressing on the area will cause pain, especially when the patient is walking or sitting, making the pain more apparent. For such cases, which are considered a severe stage of internal hemorrhoids, it's advisable to undertake surgical treatment as soon as possible. Clinically, treatment options for internal hemorrhoids include procedures like rubber band ligation, PPH (Procedure for Prolapse and Hemorrhoids), or TST (Transanal Hemorrhoidal Dearterialization), with continued dressing changes required post-surgery. However, if the prolapsed internal hemorrhoids can retract spontaneously or can be manually reduced, pressing on them generally does not cause pain because internal hemorrhoids are located above the dentate line in the anal canal, an area innervated by autonomic nerves, which are less sensitive to pain. In the absence of inflammation or thrombosis, pressing on the area will not typically cause pain. In such cases, patients should develop good bowel habits to prevent the further worsening of internal hemorrhoids.

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Written by Chen Tian Jing

Colorectal Surgery

1min 38sec

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The Difference between Mixed Hemorrhoids and Internal Hemorrhoids

Mixed hemorrhoids and internal hemorrhoids are both clinical types of hemorrhoids. Generally speaking, mixed hemorrhoids mainly occur simultaneously with both internal and external hemorrhoids, while internal hemorrhoids are mainly local mucosal bulges near the dentate line in the anal canal. Both mixed and internal hemorrhoids belong to hemorrhoids, so there are many similarities in treatment. However, since mixed hemorrhoids generally involve both internal and external hemorrhoids acting together, they are generally more severe than internal hemorrhoids alone. Treatment for both mixed and internal hemorrhoids can involve conservative medication, primarily focusing on topical applications; for mixed hemorrhoids, local anal suppositories and hemorrhoidal ointment applications are commonly used, while treatment for internal hemorrhoids primarily involves hemorrhoidal suppositories. If both mixed and internal hemorrhoids meet certain surgical criteria, surgical treatment can be chosen. The surgical approach for mixed hemorrhoids mainly includes excision and ligation, while the surgical approach for internal hemorrhoids mainly involves hemorrhoid ligation or hemorrhoid banding. (Note: This answer is for reference only, use medication under the guidance of a professional physician, do not self-medicate.)

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Written by Yu Xu Chao

Colorectal Surgery

1min 2sec

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Is minimally invasive surgery or traditional surgery better for internal hemorrhoids prolapse?

If the patient has only internal hemorrhoids prolapse without external hemorrhoids, it is better to opt for minimally invasive surgery, as it causes less damage and allows for faster postoperative recovery. Clinically, the TST surgical method is often recommended to avoid postoperative anal stenosis. However, if the internal hemorrhoids prolapse is accompanied by severe external hemorrhoids, it is advisable to opt for the traditional external peeling and internal ligation surgery, as this method can also effectively address external hemorrhoids, avoiding the need for a second surgery. Postoperatively, the use of anal cleansers, potassium permanganate solution, golden ointment, red oil ointment gauze, and hemorrhoid suppositories for dressing changes can promote recovery. Additionally, postoperative patients should avoid certain foods and maintain smooth bowel movements to prevent infections, swelling, and bleeding, which will aid in recovery.

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Written by Deng Heng

Colorectal Surgery

46sec

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What should I do if internal hemorrhoids always bleed?

Internal hemorrhoids refer to the venous clumps located above the dentate line. When these hemorrhoids are injured or ruptured, bleeding during bowel movements occurs, which is the most common primary symptom in patients with internal hemorrhoids. Frequent bleeding from internal hemorrhoids can first be treated conservatively, such as by taking oral hemostatic medications, followed by the local application of hemorrhoid creams, suppositories, and the like. If bleeding consistently persists, surgical treatment may be required. Once internal hemorrhoids present symptoms of bleeding or prolapse, they typically indicate the need for surgery, hence treatment for frequent bleeding in internal hemorrhoids can be either conservative or surgical.