Hypercalcaemia associated with bladder cancer is rarely encountered. The case history of a male patient, 75 years old, with a large, deeply infiltrating squamous cell bladder carcinoma (T4a), hypercalcaemia (3.5 mmol/l), low parathormone level and no sign of skeletal metastases is presented. A review of earlier reported cases of bladder cancer associated with hypercalcaemia is discussed.