Haemorrhoids Flashcards
what are haemorrhoids
anal vascular cushions become enlarged and engorged with a tendency to protrude, bleed or prolapse in the anal canal
what are the two types of haemorrhoids
internal and external
difference between internal and external haemorrhoids
internal haemorrhoids arise from the superior haemorrhoidal plexus and lie ABOVE the dentate line. external ones lie BELOW the dentate line
internal ones tend to bleed but don’t cause pain, external ones cause pain
what is the dentate line
a line that divides the upper 2/3 and Lower 1/3 of the anal canal and represents the handout-proctodeum junction
degree of haemorrhoids
1st degree - no prolapse
2nd degree - prolapse with defaection and reduce spontaneously
3rd degree- prolapse with manual reduction
4th degree - prolapsed haemorrhoid which cant be reduced
aetiology of haemorrhoids
disorganisation of the fibromuscular stroma of anal cushions
risk factors for developing haemorrhoids
constipation, prolonged straining, portal hypertension, pregnancy and deranged of internal anal sphincter
epidemiology
common
peak ages 45-65 years
presenting symptoms of haemorrhoids
usually asymptomatic
bleeding (bright red on TOILET paper, will not mix with stool)
itching, anal lumps and prolapsing tissue
what symptoms will there NOT be in someone with only haemorrhoids
no symptoms such as weight loss, anaemia, change in bowel habit, stool with blood/mucus
physical examination
1st or 2nd degree haemorrhoids are usually not visible on external inspection
internal haemorrhoids are NOT normally palpable on a digital rectal examination UNLESS THROMBOSED
what screening can be used to view haemorrhoids
proctoscopy
differential diagnoses for haemorrhoids
anal tags, anal fissure, rectal prolapse, polyps and tumours
investigations
DRE (digital rectal examination)
proctoscopy
rigid or flexible sigmoidoscopy
IMPORTANT TO EXCLUDE A RECTAL/SIGMOID SOURCE OF BLEED
conservative management plan
high-fibre diet, lots of water, no straining, bulk laxatives