When the disease is active, signs and symptoms may include:
Diarrhea
Abdominal pain and cramping
Blood in your stool
Fatigue
Mouth sores
Reduced appetite and weight loss
Fever
Fistula
People with severe Crohn’s disease may also experience, inflammation of skin, eyes and joints, inflammation of the liver or bile ducts, Kidney stones and Iron deficiency (anemia). It can also cause delayed growth or sexual development, in children.