Fullness in the ear can happen an airplane that's taking off or landing. It's because the air pressure on the middle ear and air pressure outside the ear are out of balance.
Disease
Atopic dermatitis (eczema)
Learn about the causes, symptoms and treatments of this itchy rash that most often begins before age 5, is persistent, and has periods of clearing and relapse.
Disease
Autoimmune encephalitis
Learn how the immune system mistakenly attacks brain cells to cause swelling in the brain related to this group of conditions.
Disease
Autoimmune epilepsy
Learn when epilepsy is an autoimmune disease and why early diagnosis and the right treatment are important.
Disease
Bags under eyes
Learn about causes, treatments and self care for bags under eyes, which become more common as you age.
Disease
Barrett's esophagus
Barrett's esophagus, which is linked to chronic heartburn, can turn into cancer of the esophagus. Learn about treatment.
Disease
Binge-eating disorder
People with this condition often don't feel able to stop eating and may eat larger than usual amounts of food. Learn about symptoms and treatment.
Disease
Bladder exstrophy
This rare condition present at birth happens when the bladder develops outside of an unborn baby during pregnancy. The condition can be repaired with surgery.
Disease
Chronic exertional compartment syndrome
Learn about this condition that causes pain and swelling in muscles of the legs or arms during exercise.
Disease
Chronic traumatic encephalopathy
This type of brain degeneration is likely caused by recurrent concussions, but the disorder isn't well understood.
Disease
Delayed ejaculation
Learn what can cause delayed or absent ejaculation and how it can be treated.
Disease
Dry eyes
Eyes feeling dry and uncomfortable? Inadequate tear production is a common — and very treatable — eye condition. Find out what causes it and how to relieve symptoms.