Symptoms of celiac disease may include one or more of the following: • gas • recurring abdominal bloating and pain • chronic diarrhea • constipation • pale, foul-smelling, or fatty stool • weight loss/weight gain • fatigue • unexplained anemia (a low count of red blood cells causing fatigue) • bone or joint pain • osteoporosis, osteopenia • behavioral changes • tingling numbness in the legs (from nerve damage) • muscle cramps • seizures • missed menstrual periods (often because of excessive weight loss) • infertility, recurrent miscarriage • delayed growth • failure to thrive in infants • pale sores inside the mouth, called aphthous ulcers • tooth discoloration or loss of enamel • itchy skin rash called dermatitis herpetiformis A person with celiac disease may have no symptoms. People without symptoms are still at risk for the complications of celiac disease, including malnutrition. The longer a person goes undiagnosed and untreated, the greater the chance of developing malnutrition and other complications. Anemia, delayed growth, and weight loss are signs of malnutrition: The body is just not getting enough nutrients. Malnutrition is a serious problem for children because they need adequate nutrition to develop properly.