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Post-Traumatic Stress Disorder
Post-traumatic stress disorder (PTSD) is a mental health condition that can develop after experiencing or witnessing a traumatic event. This posttraumatic stress…
Potassium Blood Test
A potassium blood test is a routine blood test that measures the concentration of potassium in a blood sample. Potassium is an…
Prediabetes
Prediabetes means your blood glucose, or blood sugar, is higher than usual but not yet in the range used to diagnose diabetes.…
Preeclampsia
Preeclampsia is a pregnancy-related high blood pressure disorder that can affect the pregnant person's organs and the placenta. It most often begins…
Presbycusis
Presbycusis is age-related hearing loss caused by gradual changes in the inner ear and hearing pathways. It usually develops slowly as a…
Pressure Ulcer
A pressure ulcer is damage to the skin and the tissue underneath it caused by prolonged pressure, friction, or shearing forces. It…
Primary Immunodeficiencies Due To Disorders Of Adaptive Immunity
Primary immunodeficiencies due to disorders of adaptive immunity are usually inherited conditions in which T cells, B cells, antibodies, or related immune…
Primary Immunodeficiency
Primary Immunodeficiency is a group of conditions in which part of the immune system is missing or does not work properly. This…
Prinzmetal Angina
Prinzmetal angina, also called variant angina or vasospastic angina, happens when a coronary artery suddenly tightens for a short time. This temporary…
Prostate Cancer
Prostate cancer is a cancer that begins in cells of the prostate gland. The prostate is a small gland located below the…
Prostatitis
Prostatitis is inflammation of the prostate, a gland below the bladder that surrounds part of the urethra. It may be caused by…
Psa Blood Test
PSA stands for prostate-specific antigen, a protein produced mainly by prostate tissue. A PSA blood test measures the amount of this protein…
Psoriatic Arthritis
Psoriatic arthritis is a long-term inflammatory condition in which the immune system mistakenly attacks healthy tissues, causing pain, swelling, and stiffness in…
Psychiatry & Mental Health
Diagnosis and treatment for conditions affecting mood, thinking, and behavior, through medication and therapy.
Pubic Lice
Pubic lice are tiny parasitic insects that usually live in coarse body hair, especially pubic hair. Sexual contact is a common way…
Pulmonary Disease
Pulmonary disease is a broad term for conditions that affect the lungs, airways, or blood vessels within the lungs. Some conditions are…
Pulmonary Embolism
A pulmonary embolism is a blockage in a blood vessel in the lungs, usually caused by a blood clot that formed in…
Pulmonary Hypertension
Pulmonary hypertension is high blood pressure in the blood vessels that carry blood between the heart and lungs. This increased pulmonary artery…
Pulmonology
Diagnosis and treatment for lung and respiratory conditions, including asthma, COPD, and pneumonia.
Pulpitis
Pulpitis is inflammation of the pulp, the soft, living tissue at the center of a tooth that contains nerves and blood vessels.…
Pure Red Cell Aplasia
Pure Red Cell Aplasia is a rare disorder in which the bone marrow makes too few or no red blood cell precursors.…
Pyelonephritis
Pyelonephritis is a kidney infection that causes inflammation in one or both kidneys. It often begins as a bladder infection that travels…
Pyloric Stenosis
Pyloric stenosis is a condition in which the muscle around the pyloric sphincter becomes unusually thick. This pyloric narrowing reduces the opening…
Q Fever
Q fever is an infection caused by the bacterium Coxiella burnetii. People can become infected after exposure to infected cattle, sheep, goats,…
