Health Information

 

 

Health Encyclopedia

Search Topics

Top of the page

Health Topics

Skip Navigation

  1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z
  27. (0-9)
  1. La Peste
  2. Lab Results
  3. Lab Test Results: Units of Measurement
  4. Lab Tests for Fibromyalgia
  5. Laband Syndrome
  6. Labor and Delivery
  7. Labor Induction and Augmentation
  8. Labor Trial After a Previous Cesarean Delivery, Deciding About
  9. Labyrinthine Hydrops
  10. Labyrinthine Syndrome
  11. Labyrinthitis and Vestibular Neuritis
  12. Lacerations (Cuts)
  13. Lacrimo-Auriculo-Dento-Digital Syndrome
  14. Lactation Mastitis
  15. Lactation-Uterus Atrophy
  16. lactic and pyruvate acidemia with carbohydrate sensitivity
  17. lactic and pyruvate acidemia with episodic ataxia and weakness
  18. Lactose Intolerance
  19. LAD syndromes
  20. LADD syndrome
  21. Laetrile/Amygdalin (PDQ®): Complementary and alternative medicine - Health Professional Information [NCI]
  22. Laetrile/Amygdalin (PDQ®): Complementary and alternative medicine - Patient Information [NCI]
  23. LAM
  24. Lambert-Eaton Myasthenic Syndrome
  25. Lambert-Eaton Syndrome
  26. lamellar ichthyosis, type 1 and type 2
  27. Lancefield Group B Streptococcus
  28. Lancereaux-Mathieu-Weil Spirochetosis
  29. Landau Kleffner Syndrome
  30. Landry's Ascending Paralysis
  31. Landry-Guillain-Barre-Strohl Syndrome
  32. Langer Giedion Syndrome
  33. Langerhans Cell Histiocytosis
  34. Langerhans Cell Histiocytosis Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  35. Langerhans Cell Histiocytosis Treatment (PDQ®): Treatment - Patient Information [NCI]
  36. Language Development
  37. Language Development in Newborns
  38. Language Development, Ages 1 to 12 Months
  39. Laparoscopic Gallbladder Surgery for Gallstones
  40. Laparoscopic Inguinal Hernia Repair
  41. Laparoscopic Ovarian Drilling (Ovarian Diathermy) for PCOS
  42. Laparoscopic Surgery
  43. Laparoscopic Surgery for Endometriosis
  44. Laparoscopic Tubal Ligation
  45. Laparotomy for Pelvic Problems
  46. Laron syndrome
  47. Larsen Syndrome
  48. Laryngeal Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  49. Laryngeal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  50. Laryngeal Dystonia
  51. Laryngeal Papilloma
  52. Laryngitis
  53. Laryngotracheobronchitis
  54. Laser Epithelial Keratomileusis (LASEK)
  55. Laser In-Situ Keratomileusis (LASIK) for Farsightedness
  56. Laser Iridotomy for Glaucoma
  57. Laser Photocoagulation and Cryopexy for Retinal Tears
  58. Laser Photocoagulation for Age-Related Macular Degeneration
  59. Laser Photocoagulation for Diabetic Retinopathy
  60. Laser Resurfacing
  61. Laser Surgery for Abnormal Cervical Cell Changes
  62. Laser Surgery for Genital Warts
  63. Laser Surgery for Glaucoma: Pros and Cons
  64. Laser Surgery for Nearsightedness, Deciding About
  65. Laser Surgery for Skin Cancer
  66. Laser Surgery for Warts
  67. Laser Therapy for Birthmarks
  68. Laser Trabeculoplasty for Glaucoma
  69. Laser Treatment for Varicose Veins
  70. LASIK (Laser In-Situ Keratomileusis) for Nearsightedness
  71. Last Days of Life (PDQ®): Supportive care - Health Professional Information [NCI]
  72. Last Days of Life (PDQ®): Supportive care - Patient Information [NCI]
  73. Late Effects of Treatment for Childhood Cancer (PDQ®): Treatment - Health Professional Information [NCI]
  74. Late Effects of Treatment for Childhood Cancer (PDQ®): Treatment - Patient Information [NCI]
  75. late onset central hypoventilation syndrome with hypothalamic dysfunction
  76. Late-Onset Immunoglobulin Deficiency
  77. Late-Onset Metachromatic Leukodystrophy
  78. Late-onset multiple carboxylase deficiency
  79. Latex Allergy
  80. Launois-Bensaude
  81. Launois-Cleret Syndrome
  82. Laurence-Moon syndrome (LMS)
  83. Laxatives
  84. Lazy Eye (Amblyopia)
  1. Lead Poisoning
  2. Lead Poisoning in Children: Questions Before Screening
  3. Lead Poisoning Screening
  4. Lead Poisoning: Contaminated Drinking Water
  5. Lead Poisoning: Jobs and Hobbies That May Increase Risk
  6. Lead Poisoning: Nutrition and Food Preparation
  7. Lead Poisoning: Reducing Lead in Your Home
  8. Lead Poisoning: Tips for Those Who Work With Lead
  9. Learning Disabilities
  10. Learning to Talk
  11. Leber Congenital Amaurosis
  12. Leber Hereditary Optic Neuropathy
  13. Leber's Optic Atrophy
  14. Leber's optic neuropathy
  15. Leg Amputation
  16. Leg Cramps at Night
  17. Leg Cramps During Pregnancy
  18. Leg Injuries
  19. Leg Problems, Noninjury
  20. Legg Calvé Perthes Disease
  21. Legionellosis
  22. Legionnaires' Disease
  23. Legionnaires' Disease and Pontiac Fever
  24. Leigh Necrotizing Encephalopathy
  25. Leigh Syndrome
  26. Leigh's disease
  27. Leiner Disease
  28. Leiner-Moussous Desquamative Erythroderma
  29. Leiomyosarcoma
  30. Leiomyosarcoma of the Uterus
  31. Leiomyosarcoma, Inferior Vena Cava
  32. Lejeune syndrome
  33. LEMS
  34. Lennox-Gastaut Syndrome
  35. Lennox-Gastaut Syndrome
  36. Lens Opacities
  37. Lenticular Degeneration, Progressive
  38. lentigines, atrial myxoma, and blue nevi (LAMB) syndrome
  39. Lenz Dysmorphogenetic Syndrome
  40. Lenz Dysplasia
  41. Lenz Microphthalmia Syndrome
  42. Lenz Syndrome
  43. LEOPARD Syndrome
  44. Leprechaunism
  45. Leprosy
  46. Leptomeningeal Angiomatosis
  47. leptomeningeal melanosis
  48. Leptomeningioma
  49. Leptospiral Jaundice
  50. Leptospirosis
  51. Leri Pleonosteosis
  52. Leri-Weil Dyschondrosteosis
  53. Leri-Weil Syndrome
  54. Leri-Weill Disease
  55. Leriche's Syndrome
  56. Lermoyez Syndrome
  57. Leroy Disease
  58. Lesch Nyhan Syndrome
  59. Lesch-Nyhan disease
  60. Letterer-Siwe Disease
  61. Leukemia
  62. Leukemia, Hairy Cell
  63. Leukemia, Radiation Therapy for
  64. Leukemic Reticuloendotheliosis
  65. Leukocyte Adhesion Deficiency Syndromes
  66. Leukocytic Anomaly Albinism
  67. Leukocytic Inclusions with Platelet Abnormality
  68. Leukocytoclastic Vasculitis
  69. Leukoderma
  70. Leukodystrophy
  71. Leukodystrophy with Rosenthal Fibers
  72. Leukodystrophy, Globoid Cell
  73. Leukodystrophy, Krabbe's
  74. Leukodystrophy, Metachromatic
  75. Leukoencephalitis Periaxialis Concentric
  76. Levels of Evidence for Adult and Pediatric Cancer Treatment Studies (PDQ®): Treatment - Health Professional Information [NCI]
  77. Levels of Evidence for Cancer Genetics Studies (PDQ®): Genetics - Health Professional Information [NCI]
  78. Levels of Evidence for Cancer Screening and Prevention Studies (PDQ®): Screening - Health Professional Information [NCI]
  79. Levels of Evidence for Human Studies of Cancer Complementary and Alternative Medicine (PDQ®): Complementary and alternative medicine - Health Professional Information [NCI]
  80. Levels of Evidence for Supportive and Palliative Care Studies (PDQ®): Supportive care - Health Professional Information [NCI]
  81. Levine-Critchley Syndrome
  82. Levonorgestrel (LNg) IUD
  83. Levulosuria
  84. Levy-Hollister Syndrome
  85. Levy-Yeboa Syndrome
  1. Lice
  2. Lice: Cleaning Lice From Combs, Clothing, and Other Items
  3. Lice: Removing Nits From Hair
  4. Lichen Acuminatus
  5. Lichen Annularis
  6. Lichen Planus
  7. Lichen Planus Sclerosus Atrophicus
  8. Lichen Psoriasis
  9. Lichen Ruber Acuminatus
  10. Lichen Ruber Planus
  11. Lichen Sclerosus
  12. Lichen Sclerosus et Atrophicus
  13. Lichen Urticatus
  14. Lidocaine for Cluster Headaches
  15. Life Span and Smoking Calculator
  16. Life Transitions and PTSD
  17. Life-Prolonging Treatments at End of Life, Deciding About
  18. Lifestyle Changes That May Prevent Cancer
  19. Light Therapy
  20. Light Therapy (Using), For Seasonal Affective Disorder
  21. Light to Heavy Vaginal Bleeding
  22. Lightheadedness
  23. Limb Body Wall Complex
  24. Limb-Girdle Muscular Dystrophies
  25. Limit Dextrinosis
  26. Linda's Story: Getting Active When You Have Prediabetes
  27. Linda's Story: Quitting Smoking Improves Cholesterol
  28. Lindau Disease
  29. Linear Sebaceous Nevus Sequence
  30. Lingua Fissurata
  31. Lingua Nigra
  32. Lingua Plicata
  33. Lingua Scrotalis
  34. Lingua Villosa Nigra
  35. Linguofacial Dyskinesia
  36. Lip and Oral Cavity Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
  37. Lip and Oral Cavity Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
  38. Lip Pseudocleft-hemangiomatous Branchial Cyst Syndrome
  39. lipid histiocytosis
  40. Lipid histiocytosis (kerasin type)
  41. Lipid Panel
  42. Lipid-Storage Myopathy Associated with SCAD Deficiency
  43. Lipidosis, ganglioside, infantile
  44. lipidosis, sphingomyelin
  45. lipoatrophic diabetes
  46. Lipodystrophy, partial, with Rieger anomaly and short stature
  47. Lipoid Granulomatosis
  48. Lipoma
  49. Lipomatosis Dolorosa Morbus Dercum's
  50. Lipomatosis of Pancreas, Congenital
  51. Lipomucopolysaccharidosis Type I
  52. Liposuction
  53. Lissencephaly
  54. lissencephaly, type I
  55. Listeria Infection
  56. Listeriosis
  57. Listeriosis
  58. Lithotripsy (ESWL) for Kidney Stones, Deciding About
  59. Lithotripsy for Gallstones
  60. Little Disease
  61. Little Leaguer's Elbow (Medial Apophysitis)
  62. Livedo Reticularis and Cerebrovascular Accidents
  63. Liver (Hepatocellular) Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
  64. Liver (Hepatocellular) Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
  65. Liver (Hepatocellular) Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
  66. Liver (Hepatocellular) Cancer Screening (PDQ®): Screening - Patient Information [NCI]
  67. Liver fluke disease
  68. Liver Function Panel
  69. Liver Phosphorylase Deficiency
  70. Liver Resection
  71. Liver Transplant for Hepatitis B
  72. Living Organ Donation
  73. Living Will
  74. Living Will
  75. Living With a Spinal Cord Injury
  76. Living With an Ostomy
  77. Living With More Than One Health Problem
  78. Lizard and Snake Bites
  1. LO-CCHS/HD
  2. lobar atrophy of the brain
  3. Lobar Emphysema, Infantile
  4. Lobar Holoprosencephaly
  5. Lobar Tension Emphysema in Infancy
  6. Lobo Disease
  7. Lobstein Disease (Type I)
  8. Lobster Claw Deformity
  9. Lobular Carcinoma of the Minor Salivary Glands
  10. Local Anesthesia
  11. Local Anesthesia for Childbirth
  12. Localized Infantile Mastocytosis
  13. Localized Prostate Cancer, Should I Have radiation Therapy or a Prostatectomy?
  14. Locked In Syndrome
  15. Lockjaw
  16. Loeffler Endomyocardial Fibrosis with Eosinophilia
  17. Loeffler Fibroplastic Parietal Endocarditis
  18. Loeffler syndrome
  19. Loeffler's Disease
  20. Löffler syndrome
  21. Long QT Syndrome Type 1
  22. Long QT Syndrome without Deafness
  23. Long-Term Care Choices
  24. Long-Term Care for Alzheimer's or Other Dementia, Deciding About
  25. Long-Term Care for Stroke, Deciding About
  26. Loop Electrosurgical Excision Procedure (LEEP) for Abnormal Cervical Cell Changes
  27. Loop Electrosurgical Excision Procedure (LEEP) for Genital Warts
  28. Loralie's Story: It's Never Too Late
  29. Lorna's Story: There's No Fast Cure
  30. Losing Weight: Deciding About a Diet Plan
  31. Lota
  32. Lou Gehrig's Disease
  33. Louis-Bar Syndrome
  34. Low Back Pain
  35. Low Back Pain and Sex
  36. Low Back Pain, IDET (Intradiscal Electrothermic Therapy) for
  37. Low Back Pain: Easing Back Into Your Daily Activities
  38. Low Back Pain: Exercises to Reduce Pain
  39. Low Back Pain: Should I Have an MRI?
  40. Low Back Pain: Should I Have Spinal Manipulation?
  41. Low Back Pain: Should I Try Epidural Steroid Shots?
  42. Low Blood Pressure (Hypotension)
  43. Low Blood Sugar (Hypoglycemia) in People Without Diabetes
  44. Low Blood Sugar from Diabetes
  45. Low blood sugar from taking insulin, Dealing with
  46. Low blood sugar from taking oral diabetes medicine, Dealing with
  47. Low blood sugar in children with diabetes, Preventing
  48. Low Blood Sugar with Gestational Diabetes, Dealing With
  49. Low Density B-lipoprotein Deficiency
  50. Low Gamma-GT Familial Intrahepatic Cholestasis
  51. Low Imperforate Anus
  52. Low Potassium Syndrome
  53. Low Testosterone
  54. Low-Dose Aspirin Therapy
  55. Low-Grade Papillary Carcinoma of the Palate
  56. Low-Lying Placenta
  57. Low-Potassium Foods
  58. Low-Salt Diet for Heart Failure
  59. Low-Salt Diets: Eating Out
  60. Low-Sodium Diet for Heart Failure
  61. Low-Vision Accommodations in Your Home
  62. Lowe syndrome
  63. Lower Leg Injuries
  64. Lower Leg Problems, Noninjury

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

© 1995-2013 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.