A to Z
Health Topics
- Pacemaker
- Pacemaker Placement: Before Your Procedure
- Pacemaker Placement: Returning Home
- Pacemaker: Living Well With It
- Packing a Wound at Home
- Paclitaxel (with albumin) Injection
- Paclitaxel (with polyoxyethylated castor oil) Injection
- Pacritinib
- Paget's Disease of Bone
- Pain Control
- Pain Control at the End of Life
- Pain Control Diary
- Pain Diary
- Pain in a Spinal Cord Injury
- Pain Management
- Pain Management Clinic
- Pain Management: Patient-Controlled Analgesia (PCA) Pump
- Pain: Getting Help at Home
- PALB2: Cancer Risks and Management (PDQ®): Genetics - Health Professional Information [NCI]
- Palbociclib
- Palifermin
- Paliperidone
- Paliperidone Injection
- Palivizumab Injection
- Palliative Care
- Palliative Care for Pain and Treatment Side Effects
- Pallidotomy for Parkinson's Disease
- Palonosetron Injection
- Palopegteriparatide Injection
- Palovarotene
- Pamidronate Injection
- Pancreas Transplant
- Pancreatic Cancer
- Pancreatic Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Pancreatic Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
- Pancreatic Neuroendocrine Tumors (Islet Cell Tumors) Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Pancreatic Neuroendocrine Tumors (Islet Cell Tumors) Treatment (PDQ®): Treatment - Patient Information [NCI]
- Pancrelipase
- Panic Attacks and Panic Disorder
- Panitumumab Injection
- Panobinostat
- Pantoprazole
- Pantoprazole Injection
- Pap Test
- Papaverine
- Paracentesis
- Paraffin Wax for Arthritis
- Paranasal Sinus and Nasal Cavity Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Paranasal Sinus and Nasal Cavity Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
- Parathyroid Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Parathyroid Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
- Parathyroid Hormone (PTH) Test
- Parathyroid Hormone Injection
- Parathyroidectomy: Before Your Surgery
- Parathyroidectomy: Returning Home
- Paregoric
- Parenting
- Parkinson-Plus Syndromes
- Parkinson's Disease
- Parkinson's Disease and Freezing
- Parkinson's Disease and Nutrition
- Parkinson's Disease and Tremors
- Parkinson's Disease: Eating and Drooling Problems
- Parkinson's Disease: Movement Problems From Levodopa
- Parkinson's Disease: Other Symptoms
- Parotitis
- Paroxetine
- Partial Hip Replacement Surgery
- Partial Thromboplastin Time (PTT) Test
- Partner Support During Pregnancy
- Pasireotide Injection
- Patellar Subluxation
- Patellar Tracking Disorder
- Patellar Tracking Disorder: Exercises
- Patellofemoral Pain Syndrome
- Patent Foramen Ovale (PFO)
- Patient Rights and HIPAA
- Patiromer
- Patty's Story: Using Positive Thinking to Help Back Pain
- Pazopanib
- PC-SPES (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
- PC-SPES (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
- Peanut Allergy
- Pediatric Allogeneic Hematopoietic Stem Cell Transplant (PDQ®): Treatment - Health Professional Information [NCI]
- Pediatric Autologous Hematopoietic Stem Cell Transplant (PDQ®): Treatment - Health Professional Information [NCI]
- Pediatric Chimeric Antigen Receptor (CAR) T-Cell Therapy (PDQ®): Treatment - Health Professional Information [NCI]
- Pediatric Gastric Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Pediatric Gastrointestinal Neuroendocrine Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Pediatric Hematopoietic Stem Cell Transplant and Cellular Therapy for Cancer (PDQ®): Treatment - Health Professional Information [NCI]
- Pediatric Preparation for Medical Tests
- Pegaptanib Injection
- Pegaspargase Injection
- Pegcetacoplan Injection
- Pegfilgrastim Injection
- Peginterferon Alfa-2a Injection
- Peginterferon Alfa-2b (PEG-Intron)
- Peginterferon Alfa-2b Injection (Sylatron)
- Peginterferon Beta-1a Injection
- Pegloticase Injection
- Pegunigalsidase alfa-iwxj Injection
- Pegvaliase-pqpz Injection
- Pelvic Exam
- Pelvic Exercises for Urinary Incontinence
- Pelvic Inflammatory Disease
- Pelvic Inflammatory Disease: Tubo-Ovarian Abscess
- Pelvic Organ Prolapse
- Pelvic Organ Prolapse: Should I Have Surgery?
- Pelvic Ultrasound
- Pembrolizumab Injection
- Pemetrexed Injection
- Pemigatinib
- Penbutolol
- Penciclovir Cream
- Penicillamine
- Penicillin Allergy
- Penicillin G (Potassium, Sodium) Injection
- Penicillin G Benzathine and Penicillin G Procaine Injection
- Penicillin G Benzathine Injection
- Penicillin G Procaine Injection
- Penicillin V Potassium
- Penile Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Penile Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
- Penile Implants for Erection Problems
- Pentamidine Injection
- Pentamidine Oral Inhalation
- Pentazocine
- Pentosan Polysulfate
- Pentostatin Injection
- Pentoxifylline
- People Who Need Antibiotics to Prevent Endocarditis
- Peptic Ulcer Disease
- Peramivir Injection
- Perampanel
- Percutaneous Discectomy for a Lumbar Herniated Disc
- Percutaneous Nephrolithotomy or Nephrolithotripsy
- Perfluorohexyloctane ophthalmic
- Perforation
- Pericardial effusion: Fast facts
- Pericardiocentesis
- Pericarditis
- Pericarditis: Fast Facts
- Perimetry Test (Visual Field Testing) for Glaucoma
- Perindopril
- Periodic Limb Movement Disorder
- Peripartum Cardiomyopathy
- Peripheral Arterial Angioplasty
- Peripheral Arterial Disease
- Peripheral Arterial Disease and Exercise
- Peripheral Arterial Disease: Should I Have a Procedure or Surgery?
- Peripheral Nerve Blocks
- Peripheral Nerve Blocks for Anesthesia
- Peripheral Neuropathy
- Peripheral T-Cell Non-Hodgkin Lymphoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Peritoneal Dialysis
- Permethrin Topical
- Perphenazine
- Personal Action Plan
- Personal Stories About Choosing Birth Control Methods
- Pertuzumab Injection
- Pertuzumab, Trastuzumab, and Hyaluronidase-zzxf Injection
- Pexidartinib
- Peyronie's Disease
- Phalangeal Head Resection (Arthroplasty) for Toe Joint Deformities
- Phantom Limb Pain and Chronic Pain
- Phenazopyridine
- Phenelzine
- Phenoxybenzamine
- Phentermine
- Phentermine and Topiramate
- Phenylephrine
- Phenylephrine Nasal Spray
- Phenylketonuria (PKU)
- Phenylketonuria (PKU) Test
- Phenytoin
- Phenytoin Injection
- Pheochromocytoma and Paraganglioma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Pheochromocytoma and Paraganglioma Treatment (PDQ®): Treatment - Patient Information [NCI]
- Phlebectomy
- Phlebotomy for Too Much Iron
- Phobias
- Phosphate in Blood Test
- Phosphate in Urine Test
- Photodynamic Therapy for Age-Related Macular Degeneration
- Phototherapy for Eczema
- Phototherapy for Psoriasis
- Physical Abuse
- Physical Activity and Weight Loss
- Physical Activity as You Get Older
- Physical Activity for Children and Teens
- Physical Activity Helps Prevent a Heart Attack and Stroke
- Physical and Emotional Changes as Death Approaches
- Physical Development, Ages 1 to 12 Months
- Physical Development, Ages 11 to 14 Years
- Physical Development, Ages 12 to 24 Months
- Physical Development, Ages 15 to 18 Years
- Physical Development, Ages 6 to 10 Years
- Physical Growth in Newborns
- Physical Rehabilitation for ACL Injuries
- Physical Therapy
- Physical Therapy for Back Pain
- Physical Therapy for Knee Arthritis
- Physical Therapy for Spinal Stenosis
- Physician-Assisted Death
- Phytonadione
- Pill Abortion Care
- Pilocarpine
- Pilocarpine Ophthalmic
- Pilonidal Disease
- Pimavanserin
- Pimecrolimus Topical
- Pimozide
- Pinched Nerve In or Near the Elbow
- Pindolol
- Pinkeye
- Pinkeye (Conjunctivitis)
- Pinworms
- Pioglitazone
- Piperacillin and Tazobactam Injection
- Pirbuterol Acetate Oral Inhalation
- Pirfenidone
- Piroxicam
- Pirtobrutinib
- Pitavastatin
- Pitolisant
- Pituitary Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Pituitary Tumors Treatment (PDQ®): Treatment - Patient Information [NCI]
- Pityriasis Alba
- Pityriasis Rosea
- Pivmecillinam
- PKU Diet
- Placenta Previa
- Placenta previa: Fast Facts
- Placental Abruption
- Planning a Secure Financial Future
- Planning for a Change That Matters
- Planning for Alcohol or Drug Relapse
- Planning the Transition to End-of-Life Care in Advanced Cancer (PDQ®): Supportive care - Health Professional Information [NCI]
- Planning the Transition to End-of-Life Care in Advanced Cancer (PDQ®): Supportive care - Patient Information [NCI]
- Planning to Be an Organ Donor Upon Death
- Plantar Fascia Release
- Plantar Fasciitis
- Plantar Fasciitis: Exercises
- Plantar Fasciitis: Should I Have Surgery for Heel Pain?
- Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ®): Treatment - Patient Information [NCI]
- Playground Safety
- Plazomicin Injection
- Plecanatide
- Plerixafor Injection
- Pleural Effusion
- Pleurisy
- Pleuropulmonary Blastoma (PDQ®): Treatment - Patient Information [NCI]
- Plica in the Knee
- Pneumatic Retinopexy for Retinal Detachment
- Pneumococcal Conjugate Vaccine
- Pneumococcal Conjugate Vaccine: What You Need to Know
- Pneumococcal Polysaccharide Vaccine
- Pneumococcal Polysaccharide Vaccine: What You Need to Know
- Pneumococcal Vaccine
- Pneumocystis Pneumonia and AIDS
- Pneumonia
- Pneumonia: Self-Care
- Poison Ivy, Oak, or Sumac
- Poison Ivy, Oak, or Sumac: Tips for Washing
- Poison Ivy, Oak, or Sumac: What to Do First
- Poisoning
- Polatuzumab vedotin-piiq Injection
- Polio Vaccine
- Polio Vaccine: What You Need to Know
- Polycystic Ovary Syndrome (PCOS)
- Polyethylene Glycol 3350
- Polyethylene glycol-electrolyte solution (PEG-ES)
- Polyhydramnios
- Polymyalgia Rheumatica
- Polymyxin B and Trimethoprim Ophthalmic
- Pomalidomide
- Ponatinib
- Ponesimod
- Posaconazole
- Posaconazole Injection
- Positional Plagiocephaly (Flattened Head)
- Positive Thinking Daily Journal
- Positron Emission Tomography (PET)
- Post-Polio Syndrome
- Post-Term Pregnancy
- Post-Thrombotic Syndrome
- Post-Traumatic Stress Disorder
- Post-Void Residual Urine Test
- Postcholecystectomy Syndrome
- Posterior Cruciate Ligament (PCL) Injury
- Posterior cruciate ligament injury: Fast Facts
- Posterior Vitreous Detachment
- Postoperative Problems
- Postpartum Bleeding
- Postpartum Depression
- Postpartum: First 6 Weeks After Childbirth
- Postural Orthostatic Tachycardia Syndrome (POTS)
- Potassium
- Potassium (K) in Blood Test
- Potassium (K) in Urine Test
- Potassium Iodide
- Pozelimab-bbfg Injection
- PrabotulinumtoxinA-xvfs Injection
- Practicing Gratitude
- Practicing Self-Compassion
- Pralatrexate Injection
- Pralsetinib
- Pramipexole
- Pramlintide Injection
- Pramoxine
- Prasterone Vaginal
- Prasugrel
- Pravastatin
- Prayer
- Praziquantel
- Prazosin
- Prealbumin Blood Test
- Prediabetes
- Prediabetes: Exercise Tips
- Prediabetes: Healthy Changes You Can Make
- Prediabetes: Which Treatment Should I Use to Prevent Type 2 Diabetes?
- Prednisolone
- Prednisolone Ophthalmic
- Prednisone
- Preeclampsia
- Preeclampsia: Creatinine Clearance Test
- Preeclampsia: Expectant Management
- Pregabalin
- Pregnancy
- Pregnancy After Age 35
- Pregnancy After Weight-Loss (Bariatric) Surgery
- Pregnancy and Childbirth
- Pregnancy and Chronic High Blood Pressure
- Pregnancy and Diabetes: Planning for Pregnancy
- Pregnancy and Epilepsy
- Pregnancy and Your Weight
- Pregnancy-Related Problems
- Pregnancy: Blood Clots
- Pregnancy: Carpal Tunnel Syndrome
- Pregnancy: Changes in Bowel Habits
- Pregnancy: Chemicals, Cosmetics, and Radiation
- Pregnancy: Choosing a Doctor or Midwife
- Pregnancy: Dealing With Morning Sickness
- Pregnancy: Deciding Where to Deliver
- Pregnancy: Dropping (Lightening)
- Pregnancy: Eating the Right Foods
- Pregnancy: First Prenatal Visit
- Pregnancy: Hair Changes
- Pregnancy: Healthy Weight Gain
- Pregnancy: Hemorrhoids and Constipation
- Pregnancy: High Blood Pressure and Preeclampsia
- Pregnancy: Hot Tub and Sauna Use
- Pregnancy: How to Exercise Safely
- Pregnancy: Kick Counts
- Pregnancy: Learning About Doctors and Midwives
- Pregnancy: Managing Back Pain
- Pregnancy: Managing Morning Sickness
- Pregnancy: Nosebleeds and Bleeding Gums
- Pregnancy: Pelvic and Hip Pain
- Pregnancy: Should I Have Amniocentesis?
- Pregnancy: Should I Have an Epidural During Childbirth?
- Pregnancy: Should I Have CVS (Chorionic Villus Sampling)?
- Pregnancy: Should I Try Vaginal Birth After a Past C-Section (VBAC)?
- Pregnancy: Signs of Preterm Labor
- Pregnancy: Stretch Marks, Itching, and Skin Changes
- Pregnancy: Varicose Veins
- Pregnancy: Vegetarian Diet
- Pregnancy: Work and School Issues
- Premature (Preterm) Infant
- Premature Baby: Special Care in the NICU
- Premature Ejaculation
- Premature Infant: Safe Travel With Your Baby
- Premature Ventricular Contractions (PVCs)
- Premenstrual Syndrome (PMS)
- Preparing for a Healthy Pregnancy
- Preparing for Your Hospital Stay
- Preparing Your Child for a Hospital Stay
- Preparing Your Child for the Hospital
- Presbyopia
- Preschoolers: Building a Sense of Security
- Preschoolers: Building Self-Control
- Preschoolers: Building Social Skills
- Preschoolers: Encouraging Independence
- Preschoolers: Helping Your Child Explore
- Prescription Medicine Misuse: Could You Have a Problem?
- Prescription Medicine Misuse: Getting Back on Track
- Prescription Medicine Misuse: Setting Goals for Quitting
- Prescription Medicine Misuse: Support for Recovery
- Prescription Medicine Misuse: Treatment Options
- Pressure Injuries
- Pressure Injuries From Scuba Diving
- Preterm Labor
- Preterm Prelabor Rupture of Membranes (pPROM)
- Prevent Medical Errors
- Preventing a Heart Attack or Stroke: How Aspirin May Help
- Preventing Bee Stings
- Preventing Blisters
- Preventing Breath-Holding Spells in Children
- Preventing Children's Injuries From Sports and Other Activities
- Preventing Choking in Small Children
- Preventing Deep Vein Thrombosis (DVT) in the Hospital
- Preventing Deep Vein Thrombosis From Travel
- Preventing Falls in Older Adults
- Preventing Falls in Older Adults
- Preventing Falls in Older Adults Who Take High-Risk Medicines
- Preventing Falls in the Hospital
- Preventing Falls in the Hospital
- Preventing Falls: Exercises for Strength and Balance
- Preventing Falls: Get an Eye Exam
- Preventing Falls: Leg Lifts
- Preventing Falls: Make Your Home Safe
- Preventing Falls: Medicine Safety
- Preventing Falls: The Four Fall Stoppers
- Preventing Falls: Two Good Exercises
- Preventing Falls: Use a Home Safety Checklist
- Preventing Flea Bites
- Preventing Foot Cramps
- Preventing Foot Problems: Training Techniques
- Preventing Insect Stings
- Preventing Mastitis
- Preventing Poisoning in Young Children
- Preventing Problems After Surgery
- Preventing Sepsis After You Leave the Hospital
- Preventing Spider Bites
- Preventing Tetanus Infections
- Preventing Tooth Decay in Young Children
- Primaquine
- Primary Biliary Cholangitis (PBC)
- Primary Central Nervous System Lymphoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Primary CNS Lymphoma Treatment (PDQ®): Treatment - Patient Information [NCI]
- Primary Liver Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Primary Ovarian Insufficiency
- Primidone
- Principles of Recovery
- PRK and LASEK for Farsightedness
- PRK, LASEK, and Epi-LASIK for Nearsightedness
- Probenecid
- Probiotics
- Problem-Solving to Manage Stress
- Problems After Delivery of Your Baby
- Procainamide
- Procarbazine
- Prochlorperazine
- Proctocolectomy and Ileostomy for Inflammatory Bowel Disease
- Progesterone
- Progesterone Test
- Progesterone Vaginal
- Progestin-Only (drospirenone) Oral Contraceptives
- Progestin-Only (norethindrone) Oral Contraceptives
- Progestin-Only (norgestrel) Oral Contraceptives
- Progressive Muscle Relaxation
- Prolactin Blood Test
- Prolonged Grief
- Prolotherapy for Low Back Pain
- Promethazine
- Propafenone
- Propantheline
- Proper Lifting to Protect Your Back
- Propranolol (Cardiovascular)
- Propranolol (Infantile Hemangioma)
- Propylthiouracil
- Prostate Biopsy
- Prostate Cancer
- Prostate Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
- Prostate Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
- Prostate Cancer Screening
- Prostate Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
- Prostate Cancer Screening (PDQ®): Screening - Patient Information [NCI]
- Prostate Cancer Screening: Should I Have a PSA Test?
- Prostate Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Prostate Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
- Prostate Cancer, Advanced or Metastatic
- Prostate Cancer, Nutrition, and Dietary Supplements (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
- Prostate Cancer, Nutrition, and Dietary Supplements (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
- Prostate Cancer: Should I Choose Active Surveillance?
- Prostate Cancer: Should I Have Radiation or Surgery for Localized Prostate Cancer?
- Prostate-Specific Antigen (PSA) Test
- Prostatectomy Surgery
- Prostatectomy: Returning Home
- Prostatitis
- Protecting Your Child From Infections
- Protecting Your Child From Online Strangers
- Protecting Your Skin From the Sun
- Protecting Your Skin From the Sun
- Prothrombin Time (PT/INR) Test
- Protriptyline
- Prucalopride
- Pruritus (PDQ®): Supportive care - Health Professional Information [NCI]
- Pruritus (PDQ®): Supportive care - Patient Information [NCI]
- Pseudobulbar Affect (PBA)
- Pseudoephedrine
- Pseudomonas Infection
- Psoriasis
- Psoriasis: Skin, Scalp, and Nail Care
- Psoriatic Arthritis
- Psychiatric Advance Directives
- Psyllium
- PTSD and Anger
- PTSD and Panic Attacks
- PTSD: Checking In With Yourself
- PTSD: Finding Yourself Again
- PTSD: Having a Plan
- PTSD: Signs and Symptoms
- PTSD: Treatment Options
- Puberty Issues
- Pubic Lice
- Pudendal Neuralgia
- Pulmonary (Lung) Nodules
- Pulmonary Embolism
- Pulmonary Fibrosis
- Pulmonary Hypertension
- Pulmonary Rehabilitation
- Pulse Measurement
- Puncture Wounds
- Puncture Wounds: Stitches, Staples, and Skin Adhesives
- Purifying Your Drinking Water
- Pushing a Rectal Prolapse Into Place
- Puss Caterpillar Stings
- Pyloric Stenosis
- Pyrantel
- Pyrazinamide
- Pyrethrin and Piperonyl Butoxide Topical
- Pyridostigmine
- Pyridoxine