Hemorrhoids Symptoms and Causes Expert Insights

Overview

Hemorrhoids, also known as piles, are swollen veins located in the lower part of the rectum and anus. They can occur internally, inside the rectum, or externally, around the anal opening. Hemorrhoids are a common condition and can affect people of all ages.

Types of Hemorrhoids

Hemorrhoids can be classified into two main types based on their location: internal hemorrhoids and external hemorrhoids. Let's take a closer look at each type:

• Internal Hemorrhoids: These are located inside the rectum, usually above the dentate line (a dividing line that separates the upper two-thirds and lower one-third of the anal canal). Internal hemorrhoids are covered by a mucosa lining, which does not have pain receptors. Therefore, internal hemorrhoids are generally painless unless they become prolapsed or thrombosed. The common symptoms of internal hemorrhoids include bleeding during bowel movements, protrusion of hemorrhoid tissue during bowel movements (prolapse), and a feeling of incomplete bowel movement.
• External Hemorrhoids: These are located under the skin around the anus. They develop below the dentate line, where sensitive nerve endings are present, making them more painful than internal hemorrhoids. External hemorrhoids can cause symptoms such as itching, swelling, discomfort, and pain around the anus. Blood clots can also form within external hemorrhoids, leading to a condition called thrombosed hemorrhoids, which can cause severe pain and swelling.

It is also worth mentioning that hemorrhoids can sometimes be classified based on their severity:

• Grade I: These hemorrhoids are small and may bleed, but they do not prolapse.
• Grade II: These hemorrhoids prolapse but spontaneously retract (go back inside).
• Grade III: These hemorrhoids prolapse but require manual reduction (pushing them back in) after prolapse.
• Grade IV: These hemorrhoids are permanently prolapsed and cannot be manually reduced.

Signs and Symptoms

Symptoms of External Hemorrhoids: 

• Bleeding
• Itching or irritation in the anal region
• Pain or discomfort
• Swelling around the anus

Symptoms of Internal Hemorrhoids:

• Painless bleeding during bowel movements
• Small amounts of bright red blood in the toilet
• Hemorrhoid pushes through the anal opening
• Protruding/prolapsed hemorrhoid causing pain and irritation

Symptoms of Thrombosed Hemorrhoids:

• Inflammation
• Severe pain
• A hard lump near the anus
• Swelling

Causes of Hemorrhoids

The primary cause of hemorrhoids is the stretching of veins around the anus under pressure. These veins also bulge or swell. Increased pressure placed in the lower rectum due to the following can also cause Hemorrhoids:

• Obesity
• Straining during bowel movements
• Pregnancy
• Regular heavy lifting
• Eating a low-fiber diet
• Sitting for long periods on the toilet
• Chronic diarrhea or constipation
• Anal intercourse

Risk Factors

• Age: The risk of hemorrhoids increases with age. This is because tissues supporting veins in the rectum and anus can weaken and stretch with age. 
• Pregnancy:The risk of hemorrhoids is greater during pregnancy. The weight of the baby puts pressure on the anal region.

Frequently Asked Questions