 [ Symptoms ] when should i contact my doctor about colitis [ Disease ] if you are concerned at all about it it always best just to go in just to hear the no you do not have it and get that peace of mind the guide lines outlined to me are if you have family history you need to start getting checked at 15 years of age then get checked once a year when you hit 30 personally i have a really strong family history and i am extremely high risk so when i went in for my 1st appointment 2 years ago the doctor was beyond astonished that no one had done a colonoscopy until 2 years ago i did not go until i was in pain and nothing was working which is not the best of ideas so those the guide lines and i would follow them however you are concerned enough to post the question here then make the appointment it will cost you 40 for the co pay for the peace of mind