Both internal and external hemorrhoids can cause serious itching and burning in the anal area, but why this should be remains a mystery to many people. External hemorrhoids are a bit easier to answer, after all they're quite near a sensitive band of nerves, but how do hemorrhoids that are inside the body cause itching and burning on the outside? Hemorrhoids as a whole cause these symptoms both directly, due to their very existence and behaviour, and indirectly through other biological reactions.
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