<https://www.celiac.com/forums/topic/83588-gluten-free-and-still-high-ttg-iga-level/>
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"My son was diagnosed with type 1 diabettes and celiac over 3 years ago at age 14.  He has been very good at eliminating gluten from his diet.  His original TTG IGA level was about 150, and he had a confirming endoscopy.  His last two TTG IGA tests (6 months apart) have been 60-70. \n \nI am wondering what our next step should be?  The doctor has recommended another endoscopy to find out if he still shows villous atrophy.  She says that sometimes, although rarely, people's TTG IGA levels will stay elevated even after the intestine has healed.  We don't want to subject our son to this again.  Another doctor suggests that prednozone is sometimes used to knock back the immune system, but this treatment is not a good idea for diabetics. \n \nI know the standard response to this question is \"well, he probably is still ingesting some gluten\".  We are pretty sure this is not the case.  Does anyone have experience with this situation, and if so, what did you do, and what do you recommend? \n"
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