What type of colitis you have and what symptoms you are experiencing?

I am not a doctor, but how could you have colitis diagnosed without a colonoscopy?

You can be suspected for colitis based upon your symptoms, but, colonoscopy can only confirm that and find out the exact location, extent and severity of colitis lesions.
What kind of symptoms you have?

Yes have the colonoscopy done. I have had it and there is nothing to it.. It doesn't hurt in any way and you won't remember any of it. The hardest part is the prep work. you have to drink a liquid to clean out your intestines.
You should not wait for symptoms. They can find things during the colonoscopy early. And if you have thing it is best to find it EARLY!
My father died of colon cancer too. I had nothing when they did mine I have one every 5 years..

He never had one and when they found his he had symptoms and it was already in his liver.

They makes these test to get it early and people are living because of them.. Get the test!

Have the test done. If they find any problems like pre-cancerous polyps they can remove them immediately before they spread. My husband's colon cancer had spread to his liver when they found it which is not good at all. The doctors are not giving him much time. Don't wait. You can beat it early in the game. His two sisters went in and had polyps removed and are fine. Do it for you and have your whole family do it no matter their age. You won't regret it.

Have the test done. I didn't and now it's late for a lot of options. Please dont make the same mistake as me. it may be nothing in the end.