Hi ti all and hope that everyone is doing fine. My dad has been diagnosed with carcinoma in situ a form of bladder cancer? Can anyone give me some information of this type of cancer ? In february my dad had 25% of his lung removed due to lung cancer and has a weak heart. The doctors recommend the BCG therapy I am wondering how bad the symptoms can be on the body? Very confused and would greatly apprciate any info anyone has to give Bless you all thanks