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The eggs cause acute inflammation of the bladder wall, which results in haematuria — blood in the urine.

A major cause of this later diagnosis is that women are more likely to miss or misinterpret the main sign of bladder cancer: blood in the urine, known as haematuria.

The symptoms to which it gives rise are haematuria, pain in the perineal region and a greater or less degree of anaemia through loss of blood.

Congested kidney, dropsy from heart disease, chronic nephritis, suppression of the urine, renal colic, haematuria, cystitis.

In various parts of Africa the inhabitants are liable to suffer from a form of endemic haematuria caused by the presence of a parasite in the mucous membrane of the urinary passages.