This inherited condition causes polyps to grow in the digestive tract and increases the risk of cancer. Regular screening helps reduce some risks.
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
Popliteal artery entrapment syndrome
Calf pain cramping your style during a workout? Know the symptoms of popliteal artery entrapment syndrome.
Disease
Post-polio syndrome
This syndrome causes a number of potentially serious symptoms that appear decades after the polio virus.
Disease
Post-traumatic stress disorder (PTSD)
This mental health condition, which is caused by being part of or witnessing a terrifying event, leads to symptoms that include flashbacks, nightmares and severe anxiety.
Disease
Post-vasectomy pain syndrome
Learn about post-vasectomy pain syndrome (PVPS) — How it happens after a vasectomy, tests to diagnose it and treatment options.
Disease
Prader-Willi syndrome
This rare genetic condition leads to physical, mental and behavioral problems, including being hungry all the time.
Disease
Premenstrual syndrome (PMS)
Mood swings, cramps and irritability are just a few telltale clues that you're getting your period. Learn what you can do for PMS symptom relief.
Disease
Primary lateral sclerosis (PLS)
This motor neuron disease causes nerves within the brain to slowly break down. It causes muscle weakness primarily in the legs, arms and tongue.
Disease
Primary sclerosing cholangitis (PSC)
Scarring in the bile ducts blocks the flow of bile from the liver and damages liver tissue. A liver transplant is the only known cure.
Disease
Progressive supranuclear palsy
Learn about this brain condition that affects your ability to walk, move your eyes, talk and eat.
Disease
Pulmonary atresia with intact ventricular septum
Also called PA/IVS, this rare congenital heart defect is diagnosed at or shortly after birth. Learn the symptoms and how it's treated.