Not getting enough iron can lead to this condition, which can cause tiredness and shortness of breath.
Disease
Juvenile idiopathic arthritis
Learn about this type of arthritis that affects children and can cause growth problems, joint damage and eye inflammation.
Disease
Latex allergy
This allergy is a reaction to proteins in natural rubber latex — found in medical gloves, balloons and more. Find out how to avoid many common triggers.
Disease
Lazy eye (amblyopia)
Abnormal visual development early in life can cause reduced vision in one eye, which often wanders inward or outward.
Disease
Median arcuate ligament syndrome (MALS)
Stomach pain after eating isn't always indigestion. It could be MALS, also called celiac artery compression. Know the warning symptoms.
Disease
Migraine with aura
Learn more about migraine that causes pain and sensory disturbances (aura), such as flashes of light, blind spots or tingling in the hands or face.
Disease
Milk allergy
Find out what happens when the immune system reacts to proteins in milk, causing allergic signs and symptoms such as hives and wheezing.
Disease
Mold allergy
Coughing, sneezing and itchy eyes often happen with this common allergy. Find out how to treat and help manage this condition.
Disease
Multiple system atrophy
This rare condition affects movement, blood pressure and other functions of the body.