Learn more about what ails you. Here are some common symptoms.
Common Symptoms:
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Diseases and Medical Conditions P-R provides down-to-earth, comprehensive definitions of hundreds of ailments and illnesses beginning with the letters P-R. Each listing identifies causes, incidence and risk factors, notes symptoms, outlines tests and discusses treatments and support groups where applicable.
Featured Article: Parkinson's Disease In-Depth
Parkinson's disease is a disorder that affects movement, muscle control, and balance. Learn more about Parkinson's disease symptoms and treatments. See more »
Pneumothorax
Pneumothorax is a collection of air or gas in the space surrounding the lungs. Learn about pneumothorax causes, symptoms, treatment and prevention.
See more »Poison Ivy - Oak - Sumac
Poison ivy, oak and sumac are plants that can cause an allergic skin reaction in the form of an itchy, red rash. Learn about poison ivy, oak and sumac symptoms, treatment and prevention.
See more »Poison Ivy Itchiness
Poison ivy itchiness may be relieved by drying agents such as calamine lotion or topical steroids for extra relief. Learn more about poison ivy itchiness treatment options and itch relief medications.
See more »Poliomyelitis
Poliomyelitis or polio is an infection of the nerves by the poliovirus resulting in paralysis or death. Learn about polio causes, symptoms, tests and treatment.
See more »Polyarteritis Nodosa
Polyarteritis nodosa is when immune cells attack arteries causing swelling and damage. Learn about polyarteritis nodosa causes, symptoms, treatment and prevention.
See more »Polychromatophilia
Polychromatophilia is an excess of polychromatophil cells in the blood. Learn about polychromatophilia causes, symptoms, treatment and prevention.
See more »Polycystic Kidney Disease
Polycystic kidney disease is when multiple kidney cysts enlarge and impair kidney function. Learn about polycystic kidney disease causes, symptoms, treatment and prevention.
See more »Polycystic Ovary Disease
Polycystic ovary disease is characterized by enlarged ovaries with multiple small cysts. Learn about polycystic ovary disease causes, symptoms, treatment and prevention.
See more »Polycythemia Vera
Polycythemia vera is an abnormal increase in blood cells from excess bone marrow production. Learn about polycythemia vera causes, symptoms, treatment and prevention.
See more »Polymorphic Light Eruption
Polymorphic light eruption is when sunlight exposure causes small red pimples or blisters on the skin. Learn about polymorphic light eruption causes, symptoms, treatment and prevention.
See more »Polymyalgia Rheumatica
Polymyalgia rheumatica is pain or stiffness in the hip or shoulder areas. Learn about polymyalgia rheumatica causes, symptoms, treatment and prevention.
See more »Polymyositis - Adult
Polymyositis – adult is an inflammatory disease that causes significant muscle weakness. Learn about polymyositis causes, symptoms, treatment and prevention.
See more »Porphyria
Porphyria is caused by changes in the porphyrin levels in the blood. Learn about porphyria causes, symptoms, treatment and prevention.
See more »Port-wine Stain
Port-wine stain (PWS) is a vascular birth mark made of enlarged capillaries in the skin. Learn about PWS causes, symptoms, treatment and prevention.
See more »Portacaval Shunt
Portacaval shunts are a treatment for high blood pressure in the liver. Learn about portacaval shunt causes, symptoms, treatment and prevention.
See more »Post-partum Depression
Post-partum depression is caused by rapid readjustment of hormones and weight and stress factors. Learn about post-partum depression causes, symptoms, tests, treatment and prevention.
See more »Post-splenectomy Syndrome
Post-splenectomy syndrome is a group of symptoms occurring after surgical removal of the spleen. Learn about post-splenectomy syndrome causes, symptoms, treatment and prevention.
See more »Post-streptococcal GN
Post-streptococcal GN is glomeruli inflammation as a result of infection elsewhere. Learn about post-streptococcal glomerulonephritis causes, symptoms, treatment and prevention.
See more »Post-traumatic Stress Disorder
Post-traumatic stress disorder (PTSD), a psychiatric illness, may occur after a traumatic event. Learn about PTSD causes, symptoms, treatment and prevention.
See more »Posterior Fossa Tumor
Posterior Fossa Tumor information from HowStuffWorks. Learn about causes, symptoms and treatments of Posterior Fossa Tumor.
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