This childhood mental health condition includes frequent and persistent anger, irritability, arguing, defiance or vindictiveness toward authority.
Disease
Fibrocystic breasts
Learn about this condition that's common in women, including symptoms, possible causes and testing to determine when breast cysts might need treatment.
Disease
Alzheimer's disease
Understand more about this brain disease that is the most common cause of dementia. Also learn about new tests and medicines.
Disease
Shin splints
This pain along the shin bone is common in runners, dancers and military trainees. Learn how to prevent shin splints.
Disease
Cervical spondylosis
As people age, the spinal disks in the neck shrink and bone spurs often develop. If symptoms occur, nonsurgical treatments are usually effective.
Disease
Dupuytren contracture
This condition causes one or more fingers to bend toward the palm of the hand. The affected fingers can't straighten completely.
Disease
Astrocytoma
Learn about this type of cancer that can occur in the brain or spinal cord.
Disease
Hypoplastic left heart syndrome
Learn more about this rare congenital heart defect that causes the left side of the heart to not develop fully and be small.
Disease
Precocious puberty
Read about what can cause children's bodies to begin changing into adult bodies too soon.
Disease
Dislocated shoulder
This shoulder injury, which occurs in the body's most mobile joint, causes the upper arm bone to pop out of its socket.
Disease
Pulmonary atresia with ventricular septal defect
This congenital heart defect affects the valve between the heart and lungs and includes a hole in the heart. Learn the symptoms and how it's treated.
Disease
Cervicitis
Sexually transmitted infections are often the reason why a woman develops inflammation of the cervix, which can cause abnormal discharge and bleeding.