- Pacemakers and Implantable Defibrillators
- Pacific Islander Health see Asian-American Health
- PAD see Peripheral Arterial Disease
- Paget's Disease of Bone
- Paget's Disease of Breast see Breast Cancer
- Pain
- Pain Relievers
- Pain, Abdominal see Abdominal Pain
- Pain, Back see Back Pain
- Pain, Chest see Chest Pain
- Painkillers see Pain Relievers
- Palliative Care
- Pancreas Transplantation
- Pancreatic Cancer
- Pancreatic Diseases
- Panic Disorder
- PAP Smear see Cervical Cancer
- Paralysis
- Paralysis Agitans see Parkinson's Disease
- Paralysis, Infantile see Polio and Post-Polio Syndrome
- Paranasal Sinus Cancer see Nasal Cancer
- Paraplegia see Paralysis
- Parasitic Diseases
- Parathyroid Disorders
- Parenteral Nutrition see Nutritional Support
- Parenting
- Parkinson's Disease
- Parotid Gland Disorders see Salivary Gland Disorders
- Partner Abuse see Domestic Violence
- Passive Smoking see Secondhand Smoke
- Patella see Knee Injuries and Disorders
- Paternity Testing see Genetic Testing
- Patient Records see Personal Medical Records
- Patient Rights
- Patient Safety
- Peanut Allergy see Food Allergy
- Pediatrics see Children's Health
- Pee see Urine and Urination
- Pelvic Inflammatory Disease
- Pelvic Pain
- Pelvic Support Problems
- Pelvis see Hip Injuries and Disorders
- Pemphigoid see Pemphigus
- Pemphigus
- Penile Disorders see Penis Disorders
- Penis Disorders
- Peptic Ulcer
- Performance-Enhancing Drugs see Anabolic Steroids ; Sports Fitness
- Perimenopause see Menopause
- Periodontal Disease see Gum Disease
- Peripheral Arterial Disease
- Peripheral Nerve Disorders
- Peritoneal Dialysis see Dialysis
- Persian Gulf War see Veterans and Military Health
- Personal Medical Records
- Personality Disorders
- Perspiration see Sweat
- Pertussis see Whooping Cough
- Pervasive Developmental Disorder see Autism
- Pesticides
- Pet Health
- PET Scans see Nuclear Scans
- Pets see Pet Health
- Pfiesteria Infections see Water Pollution
- Phantom Limb see Amputees
- Pharyngitis see Sore Throat
- Pharynx Cancer see Head and Neck Cancer
- Pharynx Disorders see Throat Disorders
- Phenylketonuria
- Pheochromocytoma
- Phlebitis see Deep Vein Thrombosis
- Phobias
- Phosphorus see Minerals
- Physical Fitness see Exercise and Physical Fitness
- Physical Therapy see Rehabilitation
- Phytotherapy see Herbal Medicine
- PID see Pelvic Inflammatory Disease
- Piercing and Tattoos
- Piles see Hemorrhoids
- Pilonidal Cyst see Tailbone Disorders
- Pimples see Acne
- Pinkeye
- Pinworms
- Pituitary Disorders
- PKU see Phenylketonuria
- Plague
- Plantar Fasciitis see Heel Injuries and Disorders
- Plantar Warts see Warts
- Plaque, Dental see Gum Disease ; Tooth Disorders
- Plasma-cell Myeloma see Multiple Myeloma
- Plasmacytoma see Multiple Myeloma
- Plastic and Cosmetic Surgery
- Pleural Disorders
- Pleural Effusion see Pleural Disorders
- Pleurisy see Pleural Disorders
- Plumbism see Lead Poisoning
- PMS see Premenstrual Syndrome
- Pneumocystis Infections
- Pneumonia
- Pneumonic Plague see Plague
- Pneumothorax see Pleural Disorders
- Poison Ivy, Oak and Sumac
- Poison Oak see Poison Ivy, Oak and Sumac
- Poison Sumac see Poison Ivy, Oak and Sumac
- Poisoning
- Poisons in the Home see Household Products
- Polio and Post-Polio Syndrome
- Poliomyelitis see Polio and Post-Polio Syndrome
- Pollution see Water Pollution
- Polychondritis see Cartilage Disorders
- Polycystic Kidney Disease see Kidney Diseases
- Polycystic Ovary Syndrome see Ovarian Cysts
- Polymyalgia Rheumatica
- Polymyositis see Myositis
- Porphyria
- Post-herpetic Neuralgia see Shingles
- Post-polio Syndrome see Polio and Post-Polio Syndrome
- Post-Traumatic Stress Disorder
- Postpartum Care
- Postpartum Depression
- Potassium see Minerals
- Potty Training see Toilet Training
- PPS see Polio and Post-Polio Syndrome
- Prader-Willi Syndrome
- Preconception Care
- Prednisone see Steroids
- Preeclampsia see High Blood Pressure in Pregnancy
- Preemies see Premature Babies
- Pregnancy
- Pregnancy and AIDS see AIDS and Pregnancy
- Pregnancy and Diabetes see Diabetes and Pregnancy
- Pregnancy and Substance Abuse
- Pregnancy Loss
- Pregnancy, Infections in see Infections and Pregnancy
- Pregnancy, Teen see Teenage Pregnancy
- Premature Babies
- Premature Menopause see Menopause
- Premature Ovarian Failure
- Premenstrual Syndrome
- Prenatal Care
- Prenatal Testing
- Presbycusis see Hearing Disorders and Deafness
- Prescription Drug Abuse
- Pressure Sores
- Prevention see Healthy Living
- Primary Pulmonary Hypertension see Pulmonary Hypertension
- Prion Diseases see Creutzfeldt-Jakob Disease ; Degenerative Nerve Diseases
- Privacy see Personal Medical Records
- PRK see Laser Eye Surgery
- Proctitis see Anal and Rectal Diseases
- Progeria see Genetic Disorders
- Progressive Supranuclear Palsy
- Prostate Cancer
- Prostate Diseases
- Prosthetic Limbs see Amputees
- Protective Eye Wear see Eye Injuries
- Proteins see Dietary Proteins
- Proteinuria see Urine and Urination
- Pruritus see Itching
- Pruritus Ani see Anal and Rectal Diseases
- Pseudogout see Gout
- Psoriasis
- Psoriatic Arthritis see Arthritis
- Psychiatric Disorders see Mental Health
- Psychological Stress see Stress
- Psychotic Disorders
- PTSD see Post-Traumatic Stress Disorder
- Puberty see Child Development ; Teen Development
- Pulmonary Embolism
- Pulmonary Emphysema see Emphysema
- Pulmonary Fibrosis
- Pulmonary Hypertension
- PXE see Connective Tissue Disorders
- Pyelonephritis see Urinary Tract Infections
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