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Health Topics
- La Peste
- Lab Results
- Lab Test Results: Units of Measurement
- Lab Tests for Fibromyalgia
- Laband Syndrome
- Labor and Delivery
- Labor Induction and Augmentation
- Labor Trial After a Previous Cesarean Delivery, Deciding About
- Labyrinthine Hydrops
- Labyrinthine Syndrome
- Labyrinthitis and Vestibular Neuritis
- Lacerations (Cuts)
- Lacrimo-Auriculo-Dento-Digital Syndrome
- Lactation Mastitis
- Lactation-Uterus Atrophy
- lactic and pyruvate acidemia with carbohydrate sensitivity
- lactic and pyruvate acidemia with episodic ataxia and weakness
- Lactose Intolerance
- LAD syndromes
- LADD syndrome
- Laetrile/Amygdalin (PDQ®): Complementary and alternative medicine - Health Professional Information [NCI]
- Laetrile/Amygdalin (PDQ®): Complementary and alternative medicine - Patient Information [NCI]
- Laki-Lorand Factor Deficiency
- LAM
- Lambert-Eaton Myasthenic Syndrome
- Lambert-Eaton Syndrome
- lamellar ichthyosis, type 1 and type 2
- Lancefield Group B Streptococcus
- Lancereaux-Mathieu-Weil Spirochetosis
- Landau Kleffner Syndrome
- Landry's Ascending Paralysis
- Landry-Guillain-Barré-Strohl syndrome
- Langer Giedion Syndrome
- Langerhans Cell Histiocytosis
- Langerhans Cell Histiocytosis Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Langerhans Cell Histiocytosis Treatment (PDQ®): Treatment - Patient Information [NCI]
- Language Development
- Language Development in Newborns
- Language Development, Ages 1 to 12 Months
- Laparoscopic Gallbladder Surgery for Gallstones
- Laparoscopic Inguinal Hernia Repair
- Laparoscopic Ovarian Drilling (Ovarian Diathermy) for PCOS
- Laparoscopic Surgery
- Laparoscopic Surgery for Endometriosis
- Laparoscopic Tubal Ligation
- Laparotomy for Pelvic Problems
- Laron syndrome
- Larsen Syndrome
- Laryngeal Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Laryngeal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
- Laryngeal Dystonia
- Laryngeal Papilloma
- Laryngitis
- Laryngotracheobronchitis
- Laser Epithelial Keratomileusis (LASEK)
- Laser In-Situ Keratomileusis (LASIK) for Farsightedness
- Laser Iridotomy for Glaucoma
- Laser Photocoagulation and Cryopexy for Retinal Tears
- Laser Photocoagulation for Age-Related Macular Degeneration
- Laser Photocoagulation for Diabetic Retinopathy
- Laser Resurfacing
- Laser Surgery for Abnormal Cervical Cell Changes
- Laser Surgery for Genital Warts
- Laser Surgery for Glaucoma: Pros and Cons
- Laser Surgery for Nearsightedness, Deciding About
- Laser Surgery for Warts
- Laser Therapy for Birthmarks
- Laser Trabeculoplasty for Glaucoma
- Laser Treatment for Varicose Veins
- LASIK (Laser In-Situ Keratomileusis) for Nearsightedness
- Last Days of Life (PDQ®): Supportive care - Health Professional Information [NCI]
- Last Days of Life (PDQ®): Supportive care - Patient Information [NCI]
- Late Effects of Treatment for Childhood Cancer (PDQ®): Treatment - Health Professional Information [NCI]
- Late Effects of Treatment for Childhood Cancer (PDQ®): Treatment - Patient Information [NCI]
- late onset central hypoventilation syndrome with hypothalamic dysfunction
- Late-Onset Immunoglobulin Deficiency
- Late-Onset Metachromatic Leukodystrophy
- Late-onset multiple carboxylase deficiency
- Lateral Release Surgery for Patellar Tracking Disorder
- Latex Allergy
- Launois-Bensaude
- Launois-Cleret Syndrome
- Laxatives
- Lazy Eye (Amblyopia)
- Lead Poisoning
- Lead Poisoning in Children: Questions Before Screening
- Lead Poisoning Screening
- Lead Poisoning: Contaminated Drinking Water
- Lead Poisoning: Jobs and Hobbies That May Increase Risk
- Lead Poisoning: Nutrition and Food Preparation
- Lead Poisoning: Reducing Lead in Your Home
- Lead Poisoning: Tips for Those Who Work With Lead
- Learning Disabilities
- Learning to Talk
- Leber Congenital Amaurosis
- Leber Hereditary Optic Neuropathy
- Leber's Disease
- Leber's Optic Atrophy
- Leber's Optic Neuropathy (LHON)
- Leg Amputation
- Leg Cramps at Night
- Leg Cramps During Pregnancy
- Leg Injuries
- Leg Problems, Noninjury
- Legg Calve Perthes Disease
- Legionellosis
- Legionnaires' Disease
- Legionnaires' Disease and Pontiac Fever
- Leigh Necrotizing Encephalopathy
- Leigh's Disease
- Leigh's Syndrome
- Leiner Disease
- Leiner-Moussous Desquamative Erythroderma
- Leiomyosarcoma of the Uterus
- Leiomyosarcoma, General
- Leiomyosarcoma, Inferior Vena Cava
- Lejeune syndrome
- LEMS
- Lennox-Gastaut Syndrome
- Lennox-Gastaut Syndrome
- Lens Opacities
- Lenticular Degeneration, Progressive
- lentigines, atrial myxoma, and blue nevi (LAMB) syndrome
- Lenz Dysmorphogenetic Syndrome
- Lenz Dysplasia
- Lenz Microphthalmia Syndrome
- Lenz Syndrome
- LEOPARD Syndrome
- Leprechaunism
- Leprosy
- Leptomeningeal Angiomatosis
- Leptomeningioma
- Leptospiral Jaundice
- Leptospirosis
- Leri Pleonosteosis
- Leri-Weil Dyschondrosteosis
- Leri-Weil Syndrome
- Leri-Weill Disease
- Leriche's Syndrome
- Lermoyez Syndrome
- Leroy Disease
- Lesch Nyhan Syndrome
- Lesch-Nyhan disease
- Letterer-Siwe Disease
- Leukemia
- Leukemia, Chronic Myelogenous
- Leukemia, Hairy Cell
- Leukemia, Radiation Therapy for
- Leukemic Reticuloendotheliosis
- Leukocyte Adhesion Deficiency Syndromes
- Leukocytic Anomaly Albinism
- Leukocytic Inclusions with Platelet Abnormality
- Leukocytoclastic Vasculitis
- Leukoderma
- Leukodystrophy
- Leukodystrophy with Rosenthal Fibers
- Leukodystrophy, Globoid Cell
- Leukodystrophy, Krabbe's
- Leukodystrophy, Metachromatic
- Leukoencephalitis Periaxialis Concentric
- Levels of Evidence for Adult and Pediatric Cancer Treatment Studies (PDQ®): Treatment - Health Professional Information [NCI]
- Levels of Evidence for Cancer Genetics Studies (PDQ®): Genetics - Health Professional Information [NCI]
- Levels of Evidence for Cancer Screening and Prevention Studies (PDQ®): Screening - Health Professional Information [NCI]
- Levels of Evidence for Human Studies of Cancer Complementary and Alternative Medicine (PDQ®): Complementary and alternative medicine - Health Professional Information [NCI]
- Levels of Evidence for Supportive and Palliative Care Studies (PDQ®): Supportive care - Health Professional Information [NCI]
- Levine-Critchley Syndrome
- Levonorgestrel (LNg) IUD
- Levulosuria
- Levy-Hollister Syndrome
- Levy-Yeboa Syndrome
- Leyden-Moebius Muscular Dystrophy
- Lice
- Lice: Cleaning Lice From Combs, Clothing, and Other Items
- Lice: Removing Nits From Hair
- Lichen Acuminatus
- Lichen Annularis
- Lichen Planus
- Lichen Planus Sclerosus Atrophicus
- Lichen Psoriasis
- Lichen Ruber Acuminatus
- Lichen Ruber Planus
- Lichen Sclerosus
- Lichen Sclerosus et Atrophicus
- Lichen Urticatus
- Lidocaine for Cluster Headaches
- Life Span and Smoking Calculator
- Life Transitions and PTSD
- Life-Prolonging Treatments at End of Life, Deciding About
- Lifestyle Changes That May Prevent Cancer
- Light Therapy
- Light Therapy (Using), For Seasonal Affective Disorder
- Light to Heavy Vaginal Bleeding
- Lightheadedness
- Limb Body Wall Complex
- Limit Dextrinosis
- Linda's Story: Getting Active When You Have Prediabetes
- Linda's Story: Quitting Smoking Improves Cholesterol
- Lindau Disease
- Lingua Fissurata
- Lingua Nigra
- Lingua Plicata
- Lingua Scrotalis
- Lingua Villosa Nigra
- Linguofacial Dyskinesia
- Lip and Oral Cavity Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Lip and Oral Cavity Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
- Lip Pseudocleft-hemangiomatous Branchial Cyst Syndrome
- lipase D deficiency
- LIPD deficiency
- lipid histiocytosis
- Lipid histiocytosis (kerasin type)
- Lipid Panel
- Lipid-Storage Myopathy Associated with SCAD Deficiency
- Lipidosis, ganglioside, infantile
- lipidosis, sphingomyelin
- Lipodystrophy
- Lipodystrophy, partial, with Rieger anomaly and short stature
- Lipoid Granulomatosis
- Lipoma
- Lipomatosis Dolorosa Morbus Dercum's
- Lipomatosis of Pancreas, Congenital
- Lipomucopolysaccharidosis Type I
- lipoprotein lipase deficiency
- lipoprotein lipase, included; LPL, included
- Liposuction
- Lissencephaly
- lissencephaly, type I
- Listeria Infection
- Listeriosis
- Listeriosis
- Lithotripsy (ESWL) for Kidney Stones, Deciding About
- Lithotripsy for Gallstones
- Little Disease
- Little Leaguer's Elbow (Medial Apophysitis)
- Livedo Reticularis and Cerebrovascular Accidents
- Liver (Hepatocellular) Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
- Liver (Hepatocellular) Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
- Liver (Hepatocellular) Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
- Liver (Hepatocellular) Cancer Screening (PDQ®): Screening - Patient Information [NCI]
- Liver fluke disease
- Liver Function Panel
- Liver Phosphorylase Deficiency
- Liver Resection
- Liver Transplant for Hepatitis B
- Living Organ Donation
- Living Will
- Living Will
- Living With a Spinal Cord Injury
- Living With an Ostomy
- Living With More Than One Health Problem
- Lizard and Snake Bites
- LO-CCHS/HD
- lobar atrophy of the brain
- Lobar Emphysema, Infantile
- Lobar Holoprosencephaly
- Lobar Tension Emphysema in Infancy
- Lobo Disease
- Lobstein Disease (Type I)
- Lobster Claw Deformity
- Lobular Carcinoma of the Minor Salivary Glands
- Local Anesthesia
- Local Anesthesia for Childbirth
- Localized Infantile Mastocytosis
- Localized Prostate Cancer, Should I Have radiation Therapy or a Prostatectomy?
- Locked In Syndrome
- Lockjaw
- Loeffler Endomyocardial Fibrosis with Eosinophilia
- Loeffler Fibroplastic Parietal Endocarditis
- Loeffler's Disease
- Loken Senior Syndrome
- Long QT Syndrome Type 1
- Long QT Syndrome without Deafness
- Long-Term Care for Alzheimer's or Other Dementia, Deciding About
- Long-Term Care for Stroke, Deciding About
- Loop Electrosurgical Excision Procedure (LEEP) for Abnormal Cervical Cell Changes
- Loop Electrosurgical Excision Procedure (LEEP) for Genital Warts
- Loralie's Story: It's Never Too Late
- Lorna's Story: There's No Fast Cure
- Losing Weight: Deciding About a Diet Plan
- Lota
- Lou Gehrig's Disease
- Louis-Bar Syndrome
- Low Back Pain
- Low Back Pain and Sex
- Low Back Pain, IDET (Intradiscal Electrothermic Therapy) for
- Low Back Pain: Easing Back Into Your Daily Activities
- Low Back Pain: Exercises to Reduce Pain
- Low Back Pain: Should I Have an MRI?
- Low Back Pain: Should I Have Spinal Manipulation?
- Low Back Pain: Should I Try Epidural Steroid Shots?
- Low Blood Pressure (Hypotension)
- Low Blood Sugar (Hypoglycemia) in People Without Diabetes
- Low Blood Sugar from Diabetes
- Low blood sugar from taking insulin, Dealing with
- Low blood sugar from taking oral diabetes medicine, Dealing with
- Low blood sugar in children with diabetes, Dealing with
- Low blood sugar in children with diabetes, Preventing
- Low Blood Sugar with Gestational Diabetes, Dealing With
- Low Blood Sugar: Emergency Care
- Low Blood Sugar: Emergency Care for a Child
- Low Density B-lipoprotein Deficiency
- Low Gamma-GT Familial Intrahepatic Cholestasis
- Low Imperforate Anus
- Low Potassium Syndrome
- Low-Dose Aspirin Therapy
- Low-Grade Papillary Carcinoma of the Palate
- Low-Lying Placenta
- Low-Salt Diet for Heart Failure
- Low-Salt Diets: Eating Out
- Low-Sodium Diet for Heart Failure
- Low-Vision Accommodations in Your Home
- Lowe Syndrome
- Lower Leg Injuries
- Lower Leg Problems, Noninjury
- Lubs Syndrome
- Lues, Acquired
- Lues, Congenital
- Lumbar Canal Stenosis
- Lumbar Herniated Disc
- Lumbar Herniated Disc: Should I Have Surgery?
- Lumbar Pain
- Lumbar Spinal Fusion (Arthrodesis)
- Lumbar Spinal Stenosis
- Lumbar Spinal Stenosis
- Lumbar Spinal Stenosis: Should I Have Surgery?
- Lumbosacral Region of the Spine
- Lumbosacral Spinal Stenosis
- Lumpectomy for Breast Cancer
- Lumpectomy or a Mastectomy to Treat Early-Stage Breast Cancer, Deciding About
- Lumps Under the Skin
- Lunatomalacia
- Lung Cancer
- Lung Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
- Lung Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
- Lung Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
- Lung Cancer Screening (PDQ®): Screening - Patient Information [NCI]
- Lung Function in COPD
- Lung Infections and COPD
- Lung Nocardiosis
- Lung Surgery for Lung Cancer
- Lung Transplant for COPD
- Lung Transplant for Cystic Fibrosis
- Lungs and Airways
- Lupus
- Lupus (Systemic Lupus Erythematosus)
- Lupus and Antiphospholipid Antibody Syndrome
- Lupus and Pregnancy
- Lupus Anticoagulant Syndrome
- Lupus erythematosus
- Lupus: Criteria for Diagnosis
- Lupus: Healthy Eating
- Luschka-Magendie Foramina Atresia
- Lutz-Splendore-Almeida Disease
- Lyell Syndrome
- Lyelles Syndrome
- Lyme Arthritis
- Lyme Borreliosis
- Lyme Disease
- Lyme Disease
- Lyme Disease During Pregnancy and Nursing
- Lyme Disease: Role of Blood Tests
- Lymph Node Cancer (Non-Hodgkin's Lymphoma)
- Lymph Node Removal (Lymphadenectomy) for Melanoma
- Lymphadenectomy for Endometrial Cancer
- Lymphadenitis, Regional Nonbacterial
- Lymphadenoid goiter
- Lymphadenopathy (Swollen Lymph Nodes)
- Lymphangioleimyomatosis
- Lymphangioleiomatosis
- Lymphangioleiomyomatosis
- lymphangioma
- lymphangioma circumscriptum
- lymphangiomatosis
- Lymphatic Malformations
- Lymphedema
- Lymphedema (PDQ®): Supportive care - Health Professional Information [NCI]
- Lymphedema (PDQ®): Supportive care - Patient Information [NCI]
- Lymphedema with Distichiasis
- Lymphedema with Yellow Nails
- Lymphedema-Distichiasis Syndrome
- Lymphedema: Managing Lymphedema
- Lymphocytic Infiltrate of Jessner
- lymphogranulomatosis X
- Lymphoma, Radiation Therapy for
- Lymphoreticulosis, Benign Inoculation
- Lynch Syndrome
- Lysosomal Acid Lipase Deficiency, Wolman Type
- Lysosomal Alpha-D-Mannosidase Deficiency
- Lysosomal Glucosidase Deficiency
- Lysosomal Glycogen Storage Disease Without Acid Maltase Deficiency
- Lysosomal Storage Disorders
- Lyssa




