Hi,Dear,Thanks for your query to HCM. Dear I read your query and reviewed it with context to your query facts. I understood your health concerns and feel Concerned about them. Based on the facts of your query, you seem to suffer from- Chronic UTI causing urinary obstruction. This is due to Urinary sphincter spasm from chronic Urethritis,which seems mostly from post-op long term catheter life, you had lately. Cancer and radiation has remoter implications in its causation. Vit E/Steroid supplement treatments with antibiotics and alkalized urination, would help you.. Tab Pyridium and tamsulosin under expert Urologist, could help you to void if it works. Plenty of fluids and pelvic exercises could improve the response a lot. With Expert physician to treat on the above lines,would resolve issues to some extent but worth trying. Hope this would help help you to treat your health issues in the bes t way possible. Welcome for any further query in this regard. Good Day!! Dr.Savaskar M.N. Senior Surgical Specialist M.S.Genl-CVTS