During pregnancy, if part of the placenta grows too far into the uterine wall, it can remain attached after childbirth, causing severe maternal blood loss.
Disease
Placenta previa
Learn about how this pregnancy complication is diagnosed and managed to reduce risks to your baby's health and your own.
Disease
Placental abruption
This uncommon pregnancy complication, in which the placenta separates from the wall of the uterus, can endanger both the mother and the baby.
Disease
Plague
Learn about the symptoms, risk factors and treatment of this rare, potentially fatal disease that's usually passed on by fleas.
Disease
Plantar fasciitis
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.