Celiac disease is a problem that affects your child's ability to get nutrients from food. It is caused by a sensitivity to gluten. This is a protein found in many grains. Celiac cannot be cured, but it can be managed and the damage reversed.

Diarrhea is one of the most common illnesses in children. It can lead to too much fluid loss (dehydration) which can be serious. So preventing dehydration is important in managing your child's diarrhea. Here's what you need to know.

Constipation is a common problem in children. Your child has constipation if their poop is hard and dry. This often leads to straining or trouble pooping. Read on to learn more about symptoms and treatment.

Cryptosporidium infection is an intestinal illness caused by a parasite. Learn about symptoms, diagnosis, treatment, and prevention.

E. coli is a common bacteria found in people's and animals' intestines. It's also found in the environment and in food. Certain types of E. coli are harmful and can cause severe illness. Learn how E. coli affects children and how it's treated.

Giardia infection (also called giardiasis) is an intestinal illness caused by the parasite Giardia. This parasite is found in food or water contaminated with stool from infected people or animals.

Salmonella infection is an intestinal illness caused by salmonella bacteria. Here's what you need to know.

Help kids learn how asthma works with this easy-to-understand piece.

Acute, or short-term, bronchitis occurs when the bronchial tubes are irritated by a virus, bacteria, or allergen. This causes a cough that makes yellow or greenish mucus.

Learn how pulmonary rehab programs can help people with chronic lung disease, such as chronic obstructive pulmonary disease (COPD).