Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest and can interfere with your daily functioning.
Disease
Pelvic inflammatory disease (PID)
This serious infection of the reproductive organs can cause long-term complications such as infertility and ongoing pain. Know the symptoms and causes.
Disease
Peripheral nerve tumors
Learn about these growths that form in or near nerves connecting to the spinal cord. Surgery is the most common treatment.
Disease
Neurofibroma
Learn about this type of peripheral nerve tumor that forms a soft bump on or under the skin. It can appear anywhere in the body.
Disease
Sepsis
Learn more about the symptoms and treatment of sepsis, a serious infection-related illness.
Disease
Intestinal obstruction
A blocked intestine needs prompt medical care. Learn about symptoms and the wide range of causes for this serious but treatable digestive disorder.
Disease
Transverse myelitis
This neurological disorder occurs when a section of the spinal cord is inflamed, causing pain, weakness, sensory problems and dysfunction in the body.
Disease
Sinus headaches
Sinus headaches are often to blame for headache with facial pain — but that pain might actually be a migraine.
Disease
Sex headaches
Learn about the causes and treatment of this type of headache.
Disease
Cough headaches
Often triggered by coughing and other types of straining, these headaches can be harmless or signal another problem in the brain.
Disease
Pulmonary embolism
A blood clot blocks and stops blood flow to an artery in the lung. Often the clot starts in a leg and travels to the lung.
Disease
Knee bursitis
This condition involves painful swelling of a small fluid-filled sac near the knee joint. It causes pain and can limit movement.