Deep Dive: What to Ask Your Child's GI Doctor — A Guide for ASD and PANS/PANDAS Families

Why the Appointment Needs Preparation

Gastroenterologists are specialists in the mechanics of digestion — the structural and functional health of the esophagus, stomach, intestines, and colon. They are excellent at what they do. But most of their training and clinical experience is oriented toward standard pediatric GI presentations: reflux, celiac disease, inflammatory bowel disease, functional constipation. The intersection of gut health and autism or PANS/PANDAS is a more specialized area, and not every GI specialist will approach it the same way.

Walking into a GI appointment with a nonspeaking or minimally speaking autistic child and saying "I think their gut is affecting their behavior" may get you a polite but unrevealing response. Walking in with specific questions, specific documented patterns, and a specific understanding of what tests exist changes the conversation. This guide gives you that preparation.

Before the Appointment: What to Bring

• A two-week behavioral-gut log: Documented timing of bowel movements, behavioral escalations, and any correlations you have noticed. This is your most important document.

• A food diary: What your child has been eating, what they refuse, and any reactions you have noticed to specific foods.

• A complete medication and supplement list: Include dosages and when each was started. Some medications significantly affect gut motility and the microbiome.

• Previous lab results: If any stool tests, bloodwork related to GI function, or allergy testing has been done, bring those results.

• A written symptom summary: A one-page clear description of the gut symptoms you are concerned about, written in plain English. Providers who have your child's history in writing before the appointment can spend the visit on evaluation rather than history-taking.

The Questions to Ask — Organized by Category

On Evaluation

• "Given my child's autism diagnosis and the behavioral patterns I have documented, what GI evaluation would you recommend as a starting point?"

• "Are there tests specifically designed to evaluate gut microbiome health, intestinal permeability, or inflammation markers in the context of autism?"

• "My child is nonspeaking and cannot tell me when they are in pain. How do you assess pain and discomfort in nonverbal patients?"

• "Is there a validated pain assessment tool for nonspeaking autistic children that you use in your practice?"

On Specific Concerns

• "My child has chronic [constipation / diarrhea / alternating patterns]. What is the standard workup for this presentation in an autistic child?"

• "I have heard about organic acid testing and stool microbiome analysis. Are these relevant for my child's situation, and do you order them?"

• "Is there any evidence that the microbiome patterns seen in autism affect how we should approach treatment differently from standard pediatric GI care?"

On Coordination of Care

• "My child also sees [a neurologist / an immunologist / an integrative medicine provider]. Would it be helpful for you to have information from those providers, and how do you typically handle coordinated care?"

• "If we find something on evaluation, who would be the right person to manage the treatment piece — you, their pediatrician, or a specialist in autism-specific biomedical care?"

On Next Steps

• "What would a normal GI workup look like for a child with this presentation, and what would the results tell us?"

• "If the standard evaluation comes back unremarkable but the behavioral patterns continue, what are the next steps?"

• "Is there anyone in your network who specializes specifically in GI issues in autistic children?"

What to Do If You Feel Dismissed

Not every gastroenterologist will engage with the autism-gut connection the way this guide frames it. Some will be excellent. Some will tell you the gut is not related to behavior and offer you a referral back to behavioral therapy. If that happens, you have not failed and your child has not been evaluated. You have encountered a provider whose training does not include this intersection. You have the right to seek a second opinion. You have the right to ask for a referral to a specialist who does have experience with this population. And you have the right to continue asking questions until your child's biology has been thoroughly evaluated.