Learn about this most common cause of stabbing heel pain.
Disease
Plantar warts
Learn about the causes, treatment and prevention of these hard, sometimes painful growths that appear on the heel or ball of the foot.
Disease
Pleurisy
In this condition, the tissues that line the lungs and chest cavity (pleura) become inflamed, causing sharp chest pain that worsens during breathing.
Disease
Plexiform neurofibroma
Explore how plexiform neurofibromas are diagnosed and treated using advanced imaging, genetic testing, and a range of medical and surgical options.
Disease
Pneumonia
Pneumonia — Learn about the symptoms, causes and treatment of this serious lung infection.
Disease
Pneumonitis
A general term for lung swelling and irritation, it's often caused by breathing in irritants. The swelling can cause trouble breathing and a dry cough.
Disease
Pneumothorax
A collapsed lung occurs when air leaks into the space between your lung and chest wall. This air pushes on the outside of your lung and makes it collapse.
Disease
Poison ivy rash
Learn about the symptoms, causes and home remedies for this itchy skin rash and how to prevent it.
Disease
Polio
Learn more about this contagious viral illness that affects the nervous system. Severe disease can lead to paralysis, trouble breathing and sometimes death.
Disease
Polycystic kidney disease
Learn how treatments and lifestyle changes might help reduce kidney damage from this disease.
Disease
Polycystic ovary syndrome (PCOS)
Polycystic ovaries, hormone imbalance and irregular periods are telltale signs and symptoms of polycystic ovary syndrome. Find out about treatments.
Disease
Polycythemia vera
This slow-growing blood cancer mainly affects people over 60. Treatments and lifestyle changes may reduce complications and ease symptoms.