A new study published in the British Journal of Cancer reveals that high calcium levels in the blood may be a warning sign of cancer especially in men. High blood calcium levels of hypercalcaemia occurs in about 10 to 20 per cent of cancer patients people with cancer said the researchers. So it s already known that cancer patients have elevated calcium levels in the blood but this is the first study that shown high blood calcium level can be a marker of cancer diagnosis. For the research scientists analysed the electronic records of 54000 patients who having increased levels