While I would agree that the psychological side of cancer (not only breast cancer) is often neglected, there are no single answers to the questions you ask just as there is no
one 'cancer'. First thing would be awareness that a life threatening illness is likely to disturb your equilibrium! Second, that if you already have major problems and stresses in your life (which a health professional may be quite unaware of) a cancer diagnosis is unlikely to reduce that stress and concern. Third, that diagnosis can often be unclear, confusing and take time to sort out in some manageable way. And that's just the first week or two! I am sure many can share their stories, but just as we always say with treatment, we are all different, our cancers are different, treatments are different and responses are different. The best start is to place psychological assistance in the same category as medical assistance (not that you have lost your marbles!) and approach the whole issue holistically. Second, listen to the patient. Regards.