Do all children have the same symptoms?
A. No -- and that's why doctors often miss the diagnosis, particularly in older kids. Toddlers and young children are more likely to show classic signs of celiac, such as chronic diarrhea, vomiting, failure to thrive, weight loss, gas, abdominal pain, and bloating. They're often clingy and irritable. "As children get older, the symptoms become more varied and difficult to diagnose," says Dr. Pittman. Those signs might include anemia, a skin rash, defects in tooth enamel, joint pain, delayed puberty, short stature, or less typical gastrointestinal problems, such as constipation rather than diarrhea.