see http://hcd2.bupa.co.uk/fact_sheets/ html/Haemorrhoids.html
Although piles develop from inside the anal canal, they can hang down out of their normal place. Piles can be described as follows.
* First degree piles are swellings on the inside lining of the anal canal. They bleed but can't be seen from outside the anus.
* Second degree piles are larger and stick out (or prolapse) from the anus when you open your bowels, but return on their own afterwards.
* Third degree piles are similar, but hang out from the anus and only return inside when pushed back in.
* Fourth degree piles permanently hang down from the anus and you can't push them back inside. They may become extremely swollen and painful if the blood in them clots.
Swellings that develop from below the anal cushions are sometimes called external piles. They can be more painful than the other types of piles. Other causes of lumps around the anus can include a "sentinel pile", which is the painless skin tag that develops when a crack in the anus (an anal fissure) heals up. Also, a collection of blood under the skin, called a peri-anal haematoma, may also be referred to as a type of external pile. The treatment of these conditions is different from true piles.
Bright red blood from the anus is most likely to come from piles, rather than anything more serious. However, if you are unsure whether the bleeding is due to piles, you should visit your GP for advice.
The exact cause of piles isn't known. One theory is that it's due to weakness of the tissue that connects the anal cushions to the muscle layers underneath. Due to this weakness, the anal cushions slide out of their normal place and down the back passage.
You have an increased risk of getting piles if you:
* strain to empty your bowels (eg if you have constipation)
* eat a low-fibre diet
* have long-lasting (chronic) diarrhoea
* are pregnant - due to the effect of hormones on the blood vessels, plus the increasing weight of the baby within your abdomen
* have a family history of piles
* have cancer or growths in your pelvis or bowel, which may put pressure on your abdomen
To examine the walls of the anal canal, your doctor may use a proctoscope (also called an anoscope).
A similar examination, using a longer tube called a sigmoidoscope, allows your doctor to view the lower part of the large bowel and helps to rule out problems in the rectum.
At hospital, the whole of your large bowel can be viewed with a colonoscopy. A colonoscopy is a test that allows your doctor to look inside your large bowel using a narrow, flexible, tube-like telescope called a colonoscope. For more information, see Related topics.
If you have daily bowel movements that are solid but soft, and you don't need to strain, faeces will pass easily and will not put pressure on the blood vessels in your anal area.
To keep your bowel movements soft, you should:
* eat plenty of fibre-rich foods such as fruit, vegetables and wholegrain cereals (eg brown rice, wholemeal bread and wholemeal pasta)
* drink plenty of water
You shouldn't spend too much time on the toilet (reading, for example). Regular warm baths may relieve irritation and help to keep the area clean.
If you are still passing hard or infrequent faeces, you could try a fibre supplement such as ispaghula husk (eg Fybogel) or mild laxatives such as lactulose, which soften faeces. Don't use strong laxatives, such as the stimulant laxative senna, unless your doctor advises you to.
Medicines
There are a number of over-the-counter treatments that can help relieve the symptoms of piles, but won't cure them.
* Soothing creams, ointments and suppositories may ease pain and itchiness. There are many different products available without prescription. Some contain a local anaesthetic such as li
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7:45 PM on November 17, 2008