Haemorrhoids form because of increase in pressure in veins present in the anal canal. This causes the veins to swell and gradually stretch out of shape as the supporting tissue weakens (because of persistent increase in pressure). Some common causes which increase the pressure include straining on bowel movement, persistent diarrhoea or constipation, overweight condition or pregnancy. Haemorrhoids may be internal (swollen veins in the anal canal) or external (under the skin surrounding the anal opening). [Read: Tips to Treat Haemorrhoids]
How long does haemorrhoids last
Haemorrhoids respond well to conservative treatment (diet, lifestyle changes and medications) in most people. It may become a chronic problem in some people. They may have frequent recurrence of symptoms and may struggle with haemorrhoid pain, discomfort, and itching much of their lives.
Haemorrhoid flare-ups (that is recurrence of symptoms such as swelling, irritation and mild discomfort) are usually brief, and most symptoms subside within a few days. Pain and swelling caused because of thrombosis of an external haemorrhoid usually subsides within a few days up to a week or two. Rectal bleeding usually stops in a few days. Some people may have intermittent slight bleeding from haemorrhoids for months or a few years. [Read: Tips to Prevent Haemorrhoids]
Initially the symptoms are mild and usually respond to treatment in a few days. But with each recurrence, the symptoms may last for a longer duration and be more severe. If you have recurrent flare up of symptoms, then taking preventive measures (such as including plenty of fibre in the diet, drinking plenty of water, avoiding straining at stool) becomes important. Surgery is usually highly successful with a low rate of recurrence of symptoms in people with severe or recurrent symptoms.
Haemorrhoids which develop in pregnancy usually improve dramatically or disappear after childbirth. [Read: Symptoms of Haemorrhoids]
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