Hello All Friend, I am very nervous to look for some advice. My mom got polycythemia vera (PV) (mild blood cancer, develop very slow, could last 10 to 14 years) 2 years ago, now she will get her medical exam soon. I am planning to disclose her sickness even the exam may not be able to find it, but I am worried if she will be rejected due to excessive demand. Be honest, her treatment is very cheap, so far the medication in Canada only cost less $300 per year, and blood test every 3 month for monitoring. If based on her current situation, she shouldn't cost that much per year. however, theoretically, 20% PV patients may develop to more serious blood cancer, but so far the doctor and scientists do not know that much. My questions is how the officer to evaluate the uncertainty and will she be rejected? and am I have a chance to argue with this? I am a single child, my parents are getting older, long distance travel become harder and harder to them. Much appreciated if you could provide some advice. Thanks