Several types of this condition affect the blood vessels in the brain or spinal cord.
Disease
Central sleep apnea
Find out how a mix-up in brain signals can affect your breathing during sleep, and learn how this sleep disorder can be treated.
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
Childhood apraxia of speech
This speech disorder is caused by a problem with communication between the brain and the muscles used for speech. Speech therapy can help.
Disease
Childhood schizophrenia
This severe mental disorder in children involves hallucinations, delusions, and disordered thinking and behavior that can impair the ability to function.
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 sinusitis
Read about possible causes of lasting sinus troubles, treatments and how to prevent these problems.
Disease
Churg-Strauss syndrome
Eosinophilic granulomatosis with polyangiitis is a rare blood vessel disease that may cause breathing trouble, face pain and a runny nose. Medicines can help.
Disease
Cold sore
Learn more about the causes, symptoms, treatment and prevention of this common lip sore caused by the herpes simplex virus type 1 (HSV-1).
Disease
Complex regional pain syndrome
Learn about this neurological condition that may affect an arm or a leg after an injury or surgery. Early treatment may prevent a recurrence.
Disease
Compulsive sexual behavior
Also called sexual addiction, this means being obsessed with sexual fantasies, urges, or behaviors that disrupt your life or cause harm to you or others.
Disease
Congenital myasthenic syndromes
These rare hereditary conditions result in a problem in nerve stimulation, causing muscle weakness that worsens with physical activity.