External hemorrhoids information
Hemorrhoids are defined as swollen and inflamed veins
in the anorectal region due to increased pressure within the veins or weak vein
walls. They are similar to varicose veins and both share the same pathogenesis
and causes are similar.
Depending on their location, hemorrhoids are
classified into 2 types, external hemorrhoids outside the anus and internal
hemorrhoids located inside the anus. External hemorrhoids are more
common than internal hemorrhoids are caused by inflammation of the external
hemorrhoidal veins.
What causes external hemorrhoids?
One or both of two main factors contributing to the
development of hemorrhoids:
1) Increased pressure inside the veins, and
2) Weak vein walls. Increased pressure within the veins is
usually caused by chronic constipation tend eg, chronic cough, lifting heavy or
prolonged sitting or standing weight. Weak vein walls are usually genetically
determined causes a genetic predisposition for hemorrhoids and this
explains why hemorrhoids are more common in some families than others.
Other causes of weak vein walls are obesity and pregnancy.
Pregnancy is actually a dual mechanism, as it is associated with increased
pressure in the pelvic veins by the pregnant uterus and chronic constipation
which is common during pregnancy and hormonal changes that occur during
pregnancy weakening Lead venous walls.
Symptoms of external hemorrhoids
Symptoms of external hemorrhoids include anal pain on
defecation, which is the main presenting complaint. In addition, some degree of
pain or discomfort may be present in the anal area all the time. Anal bleeding
is rare and occurs when is usually mild, is usually caused by a rupture of hemorrhoidal
veins especially in long lasting case.
Irritation and anal itching is also present. The hemroidal
fabric is felt as a hard lump near the anus. This mass can be painful and
tender. Hemorrhoids may undergo thrombosis is more common with
neglected cases, in which blood clotting or thrombosis occurs in the
blood within the dilated veins. When this happens in a case of external
hemorrhoids, they are called thrombosed external hemorrhoids. When external
hemorrhoids thrombosed, they turn into a bluish discoloration and become
extremely painful and may ooze blood contributes to anal bleeding.
Diagnosing external hemorrhoids is very easy,
depending on the typical symptoms listed above and medical examination, where
the mass hemorrhoids can easily bee seen and felt as a hard lump near
the anus.
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