Wednesday 4 July 2012

What are hemorrhoids?

A precise definition of pile flare-ups does not exist, but they can be described as masses or sections ("cushions") of cells within the anal channel that contain bloodstream and the nearby, assisting cells created up of muscle and flexible materials. The anal channel is the last four inches through which feces passes as it goes from the anal sphincter to the outside globe. The butt is the opening of the anal channel to the outside globe.

Although most people think pile flare-ups are irregular, they are present in everyone. It is only when the hemorrhoidal pillows increase that pile flare-ups can cause issues and be considered irregular or a disease.

Prevalence of hemorrhoids

Although pile flare-ups occur in everyone, they become large and cause issues in only 4% of the general population. Hemorrhoids that cause issues are found equally in men and women, and their occurrence mountains between 45 and 65 years of age.


Formation of hemorrhoids       

If the pile starts at the top (rectal side) of the anal channel, it is termed as an inner pile. If it starts at the lower end of the anal channel near the butt, it is termed as an exterior pile. Theoretically, the difference between exterior and internel pile flare-ups is created on the basis of whether the pile starts above or below the dentate range (internal and exterior, respectively).

As discussed previously, hemorrhoidal pillows in the upper anal channel are created up of bloodstream and their assisting cells. There usually are three major hemorrhoidal pillows focused right posterior, right anterior, and left side. During the development of increased inner pile flare-ups, the boats of the anal pillows expand and the assisting cells increase in size. The huge mass of cells and bloodstream projects into the anal channel where it can cause issues. Unlike with inner pile flare-ups, it is not clear how exterior pile flare-ups type.


Anatomy of hemorrhoids

The bloodstream providing system to the anal channel come down into the channel from the anal sphincter above and type a wealthy system of bloodstream that communicate with each other around the anal channel. Because of this wealthy system of bloodstream, hemorrhoidal bloodstream have a ready provide of arterial system. This explains why blood loss from pile flare-ups is bright red (arterial blood) rather than dark red (venous blood), and why blood loss from pile flare-ups occasionally can be severe. The bloodstream that provide the hemorrhoidal boats pass through the assisting cells of the hemorrhoidal pillows.

The anal blood vessels strain system away from the anal channel and the pile flare-ups. These blood vessels strain in two directions. The first direction is up-wards into the anal sphincter, and the second is downwards beneath the epidermis around the butt. The dentate range is a range within the anal channel that signifies the conversion from anal epidermis (anoderm) to the lining of the anal sphincter.

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