There's some older research I once found at PubMed wherein there was some fairly strong indication that removal of the appendix made one somewhat more susceptible to Crohn's BUT appeared to be somewhat protective for not developing UC.
I had a elective tubal ligation, at the same time they did a bladder and uterine suspension (had no idea I needed them) AND an appendectomy.
I was blackmailed into the appendectomy and I've always resented it. I was told they would take the appendix when they did the ligation. I told them I did NOT want them to take the appendix. If it ain't broke, don't fix it. They refused to do the ligation unless they also took the appendix. It was a standoff for over a year. But then I had a pregnancy scare. Turned out to be a false alarm but that drove me to agree to the ligation - and appendix removal.
Two years later Crohn's symptoms began and 6 months later I was Dx'd w/Crohn's. D*amn surgeons! Two years after that I had a resection for 18" of the mid-ileum so I still have the TI and ICV. Altho now there is some mild inflammation in that area and some scarring.
A couple of years ago I developed a cataract. It finally progressed to the point it was causing enough problems to consider having it removed but I "could" have done all right for some time yet. Like I fool I [b]elected[/b] to have the surgery done. Its not like I went to some snuffy or that I didn't get a couple of opinions first. I made the mistake of having the surgery done at U of M's Kellogg Eye Center by their leading ophthalmic surgeon. They sheister gave me a "reading" lens inplant when I was specific that I wanted a "distance" lens inplant. THAT was HIS mistake that I am paying the consequences of. To add insult to injury, they mis-measured my eye so that its not even the correct "reading" lens inplant. (That's a risk that I WAS aware of).
I'll have to be dead and dying BEFORE I ever agree to another surgery!! I have an almost 7cm ovarian cyst they've wanted to cut out since we found it at 4 cms. Even Mayo Clinic has wanted to cut out that resection site at the mid-ileum for several years now, but their surgeon mentioned they "might" have to take the new area at the TI/ICV area as well. I adamantly refused to agree to the TI/ICV area, they said they couldn't do the mid-ileum surgery if their hands were tied regarding the TI/ICV area. [b]D*amn surgeons![/b] So I refused the surgery. And I do NOT regret refusing either surgery. Like I said, when I'm dead and dying - maybe.