In 2009 a wide ranging review of evidence from a variety of sources – botanical, animal, human and cellular – was reported. This showed a remarkable consistency in the relationship between aspirin and cancer.
Doctors and health authorities evaluate drugs and other treatments by estimating the balance between the risks (bleeding) and the benefits (reductions in disease. Health authorities also have to take the cost of the treatment into account. A number of careful evaluations of aspirin, have shown its use in older people is highly favourable, with respect to both the risk-benefit balance, and the cost-effectiveness.[10-13]
Finally: a warning! If regular daily aspirin is taken, it should not be stopped suddenly. Suddenly stopping aspirin risks a rebound in vascular risk, and an increase in the risk of death (14). If it has to be stop the drug it should be withdrawn slowly.