Everyone has haemorrhoids. They are cushions of blood vessels with a good blood supply at the junction between the rectum and the anus, which, together with the sphincter muscle, provide a fine seal for the bowel. Haemorrhoidal disease is only present when these cushions become permanently enlarged and cause symptoms – which affects around one in two adults at some point in their lives.
Typical signs are bright red traces of blood on the toilet paper, itching, burning, weeping or a feeling of a foreign body. Enlargement is favoured above all by heavy straining due to constipation, a low-fibre diet, long periods of sitting, excess weight and lack of exercise, as well as by pregnancy, weak connective tissue and age.
Four grades are distinguished. At grade I, the cushions are enlarged but not visible from the outside. At grade II, they protrude when straining and retract by themselves. At grade III, they no longer slide back on their own but can be pushed back; at grade IV, they are permanently prolapsed. The grade determines the path: from self-help to a procedure.
Not every complaint at the anus is haemorrhoidal disease. A sudden, painful lump is often an anal vein thrombosis; stabbing pain when passing stools points more to a small tear in the lining, an anal fissure. Blood can also indicate other, sometimes more serious diseases of the bowel. That is why any bleeding should be checked by a doctor once – with an examination that is usually simpler than feared.