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  1. PAD (See: Peripheral artery disease)
  2. Paget's disease of bone
  3. Paget's disease of the breast
  4. Paget's disease of the nipple (See: Paget's disease of the breast)
  5. Pain, chest (See: Chest pain)
  6. Painful bladder syndrome (See: Interstitial cystitis)
  7. Painful intercourse (dyspareunia)
  8. Painful periods (See: Menstrual cramps)
  9. Palsy, Bell's (See: Bell's palsy)
  10. Palsy, cerebral (See: Cerebral palsy)
  11. Palsy, facial (See: Bell's palsy)
  12. Palsy, progressive supranuclear (See: Progressive supranuclear palsy)
  13. Pancreatic cancer
  14. Pancreatic cysts
  15. Pancreatitis
  16. Panic attacks
  17. Panic attacks and panic disorder (See: Panic attacks)
  18. Paraneoplastic syndromes (See: Paraneoplastic syndromes of the nervous system)
  19. Paraneoplastic syndromes of the nervous system
  20. Paranoid personality disorder (See: Personality disorders)
  21. Parkinson's disease
  22. Parvovirus infection
  23. Patellar tendinitis
  24. Patellofemoral pain syndrome (See: Chondromalacia patella)
  25. Patent ductus arteriosus (PDA)
  26. Patent foramen ovale
  27. Pathological gambling (See: Compulsive gambling)
  28. Pathological stealing (See: Kleptomania)
  29. PCOS (See: Polycystic ovary syndrome (PCOS))
  30. PDA (See: Patent ductus arteriosus (PDA))
  31. Peanut allergy
  32. Pectus carinatum
  33. Pectus excavatum
  34. Pediatric brain tumors
  35. Pediatric obstructive sleep apnea
  36. Pediatric thrombocytopenia
  37. Pediatric white blood cell disorders
  38. Pediculosis capitis (See: Head lice)
  39. Pelvic inflammatory disease (PID)
  40. Pelvic organ prolapse
  41. Pelvic pain, chronic (See: Chronic pelvic pain in women)
  42. Pelvic support problems, cystocele (See: Anterior prolapse (cystocele))
  43. Pelvic support problems, enterocele (See: Small bowel prolapse (enterocele))
  44. Pelvic support problems, uterine prolapse (See: Uterine prolapse)
  45. Pemphigus
  46. Penicillin allergy
  47. Peptic ulcer
  48. Perforated eardrum (See: Ruptured eardrum)
  49. Pericardial effusion
  50. Pericarditis
  51. Perimenopause
  52. Periodontal disease, gingivitis (See: Gingivitis)
  53. Periodontal disease, periodontitis (See: Periodontitis)
  54. Periodontal disease, trench mouth (See: Trench mouth)
  55. Periodontitis
  56. Peripheral artery disease
  57. Peripheral nerve injuries
  58. Peripheral nerve tumors
  59. Peripheral neuropathy
  60. Peripheral vascular disease (See: Peripheral artery disease)
  61. Peritoneal mesothelioma (See: Mesothelioma)
  62. Peritonitis
  63. Pernicious anemia (See: Vitamin deficiency anemia)
  64. Pernio (See: Chilblains)
  65. Peroneal muscular atrophy (See: Charcot-Marie-Tooth disease)
  66. Personality disorder, antisocial (See: Antisocial personality disorder)
  67. Personality disorder, borderline (See: Borderline personality disorder)
  68. Personality disorder, narcissistic (See: Narcissistic personality disorder)
  69. Personality disorder, schizoid (See: Schizoid personality disorder)
  70. Personality disorder, schizotypal (See: Schizotypal personality disorder)
  71. Personality disorders
  72. Pertussis (See: Whooping cough)
  73. Pervasive disintegrative disorder (See: Childhood disintegrative disorder)
  74. Pes planus (See: Flatfeet)
  75. Pet allergy
  76. Peyronie's disease
  77. Phantom pain
  78. Pharyngeal cancer (See: Throat cancer)
  79. Pharyngitis (See: Sore throat)
  80. Phenylketonuria
  81. Pheochromocytoma
  82. Phlebitis (See: Thrombophlebitis)
  83. Phobia, social (See: Social anxiety disorder)
  84. Phobias
  85. Photosensitivity (See: Polymorphous light eruption)
  86. Pick's disease (See: Frontotemporal dementia)
  87. PID (See: Pelvic inflammatory disease (PID))
  88. Piles (See: Hemorrhoids)
  89. Pilonidal cyst
  90. Pilonidal dimple (See: Sacral dimple)
  91. Pimples (See: Acne)
  92. Pinched nerve
  93. Pink eye (conjunctivitis)
  94. Pinworm infection
  95. Pinworm infection (See: Pinworm infection)
  96. Pituitary insufficiency (See: Hypopituitarism)
  97. Pituitary tumors
  98. Pituitary tumors (See: Pituitary tumors)
  99. Pityriasis rosea
  100. Pityriasis versicolor (See: Tinea versicolor)
  101. PKD (See: Polycystic kidney disease)
  102. PKU (See: Phenylketonuria)
  103. Placenta accreta
  104. Placenta previa
  105. Placental abruption
  106. Plague
  107. Plantar fasciitis
  108. Plantar neuroma (See: Morton's neuroma)
  109. Plantar warts
  110. Pleural mesothelioma (See: Mesothelioma)
  111. Pleurisy
  112. PLS (See: Primary lateral sclerosis (PLS))
  113. Pneumonia
  114. Pneumonitis
  115. Pneumothorax
  116. POEMS Syndrome
  117. Poison ivy rash
  118. Polio
  119. Polycystic kidney disease
  120. Polycystic ovary syndrome (PCOS)
  121. Polycythemia vera
  122. Polyhydramnios
  123. Polymorphous light eruption
  124. Polymyalgia rheumatica
  125. Polymyositis
  126. Polyps, colon (See: Colon polyps)
  127. Polyps, endometrial (See: Uterine polyps)
  128. Polyps, nasal (See: Nasal polyps)
  129. Polyps, stomach (See: Stomach polyps)
  130. Polyps, uterine (See: Uterine polyps)
  131. Pompholyx (See: Dyshidrosis)
  132. Poor color vision
  133. Popliteal artery aneurysm
  134. Popliteal cyst (See: Baker's cyst)
  135. Porphyria
  136. Post-cardiac injury syndrome (See: Dressler's syndrome)
  137. Post-concussion syndrome
  138. Posterior cortical atrophy
  139. Posterior cruciate ligament injury
  140. Posterior prolapse (See: Posterior prolapse (rectocele))
  141. Posterior prolapse (rectocele)
  142. Postherpetic neuralgia
  143. Postmyocardial infarction syndrome (See: Dressler's syndrome)
  144. Postpartum depression
  145. Postpartum hypopituitarism (See: Sheehan's syndrome)
  146. Postpartum preeclampsia
  147. Postpartum thyroiditis
  148. Post-polio syndrome
  149. Post-polio syndrome (See: Post-polio syndrome)
  150. Post-traumatic stress disorder (PTSD)
  151. Postural hypotension (See: Orthostatic hypotension (postural hypotension))
  152. Pouchitis
  153. Prader-Labhart-Willi syndrome (See: Prader-Willi syndrome)
  154. Prader-Willi syndrome
  155. Precocious puberty
  156. Prediabetes
  157. Preeclampsia
  158. Preexcitation syndrome (See: Wolff-Parkinson-White syndrome)
  159. Pregnancy-related hypertension (See: Preeclampsia)
  160. Prehypertension
  161. Premature birth
  162. Premature ejaculation
  163. Premature menopause (See: Premature ovarian failure)
  164. Premature ovarian failure
  165. Premature puberty (See: Precocious puberty)
  166. Premature ventricular contractions
  167. Premenstrual syndrome (See: Premenstrual syndrome (PMS))
  168. Premenstrual syndrome (PMS)
  169. Presbycusis (See: Hearing loss)
  170. Presbyopia
  171. Prescription drug abuse
  172. Pressure sores (See: Bedsores (pressure sores))
  173. Preterm labor
  174. Priapism
  175. Prickly heat (See: Heat rash)
  176. Primary aldosteronism
  177. Primary biliary cirrhosis
  178. Primary cough headache (See: Cough headaches)
  179. Primary immunodeficiency
  180. Primary lateral sclerosis (PLS)
  181. Primary ovarian insufficiency (See: Premature ovarian failure)
  182. Primary polycythemia (See: Polycythemia vera)
  183. Primary progressive aphasia
  184. Primary sclerosing cholangitis
  185. Proctitis
  186. Progeria
  187. Progressive supranuclear palsy
  188. Prolactinoma
  189. Prolapse, mitral valve (See: Mitral valve prolapse)
  190. Prolapsed bladder (See: Anterior prolapse (cystocele))
  191. Prolapsed uterus (See: Uterine prolapse)
  192. Prostate cancer
  193. Prostatitis
  194. Pruritis ani (See: Anal itching)
  195. Pruritus (See: Itchy skin (pruritus))
  196. Pseudogout
  197. Pseudomembranous colitis
  198. Pseudotumor cerebri
  199. Psoriasis
  200. Psoriatic arthritis
  201. Psychopathic personality (See: Antisocial personality disorder)
  202. Psychosis (See: Schizophrenia)
  203. PTSD (See: Post-traumatic stress disorder (PTSD))
  204. Pubic lice (crabs)
  205. Puffy eyes (See: Bags under eyes)
  206. Pulmonary atresia
  207. Pulmonary edema
  208. Pulmonary embolism
  209. Pulmonary fibrosis
  210. Pulmonary hypertension
  211. Pulmonary valve disease
  212. Pulmonary valve stenosis
  213. PVCs (See: Premature ventricular contractions)
  214. PVD (See: Peripheral artery disease)
  215. Pyelonephritis (See: Kidney infection)
  216. Pyloric stenosis
  217. Pyoderma gangrenosum
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