What Causes Constipation When Diagnosed With A Lump In The Vagina?

I have a lump inside my vagina and close to my anus. I saw my OB/GYN doctor today, and I thought he would give me a pap smear. He said the growth appeared to be a cancerous growth was not rectocele as I thought it was, and a pap smear would give him a false positive. I am to see a surgeon who will give me a colonoscopy and an operation to remove the tumor if it is not too far advanced. What type or types of cancer could it be. I had kidney cancer last year. I was on the operating table, and the doctor said that he would not do the surgery because my PT count in my blood was too high, and I might bleed out. I have been seeing a liver specialist for a fatty liver. He gave me lactulose, but instead of helping my system detoxify, it caused me to have severe constipation and hemorroids. The doctors removed the cancer in my kidney through microwave ablation. I have had numerous CT Scans and MRI's, and I would like to know why this particular tumor that I have now did not show up. Now I am having to prepare for more bad news, and I would like to know what kind of cancer it may be.