“Explore our comprehensive A-Z guide on diseases and conditions. Discover detailed information on definitions, symptoms, causes, and treatments to better understand various health issues.”
- Labial Adhesions
- Labyrinthitis
- Lactic Acidosis
- Lactose Intolerance
- Lafora Disease
- Lagophthalmos
- Lamb-Shaffer Syndrome
- Lambert-Eaton Myasthenic Syndrome
- Landau-Kleffner Syndrome
- Langerhans Cell Histiocytosis
- Langya Henipavirus
- Large Granular Lymphocytic Leukemia
- Laryngeal Cancer
- Laryngeal Cleft
- Laryngeal Papillomatosis
- Laryngitis
- Laryngomalacia
- Laryngopharyngeal Reflux
- Laryngospasm
- Lassa Fever
- Latent Autoimmune Diabetes in Adults (LADA)
- Lateral Collateral Ligament (LCL) Tears
- Latex Allergy
- Lattice Degeneration
- Lead Poisoning
- Leaky Gut Syndrome
- Leaky Heart Valve
- Learning Disabilities and Disorders
- Leber Hereditary Optic Neuropathy
- Leber’s Congenital Amaurosis
- Ledderhose Disease
- Left Anterior Fascicular Block
- Left Atrial Enlargement
- Left Bundle Branch Block
- Left Posterior Fascicular Block
- Left Ventricular Hypertrophy
- Left Ventricular Non-Compaction
- Left-Sided Heart Failure
- Leg Cramps
- Leg Ulcers
- Legg-Calve-Perthes Disease
- Legionnaires’ Disease
- Leigh Syndrome
- Leiomyosarcoma
- Leishmaniasis
- Lennox-Gastaut Syndrome
- Leprosy (Hansen’s Disease)
- Leptomeningeal Disease
- Leptospirosis
- Lesch-Nyhan Syndrome
- Leukemia
- Leukodystrophy
- Leukophobia
- Leukoplakia
- Levoscoliosis & Dextroscoliosis
- Lewy Body Dementia
- Li-Fraumeni Syndrome
- Lichen Nitidus
- Lichen Planopilaris
- Lichen Planus
- Lichen Sclerosus
- Lichen Spinulosus
- Lilapsophobia
- Limb-Girdle Muscular Dystrophy (LGMD)
- Lip Cancer
- Lip Lines
- Lipedema
- Lipodystrophy
- Lipohypertrophy
- Lipoma
- Liposarcoma
- Lipschütz Ulcer
- Lisfranc Fracture
- Lissencephaly
- Listeriosis
- Lithium Toxicity
- Liver Cancer
- Liver Cysts
- Liver Disease
- Liver Failure
- Liver Fluke
- Liver Hemangioma
- Liver Lesions
- Liver Spots
- Lobular Breast Cancer
- Lobular Carcinoma in Situ (LCIS)
- Locked-in Syndrome (LiS)
- Loeys-Dietz Syndrome
- Loiasis
- Long COVID
- Long QT Syndrome (LQTS)
- Loose Tooth
- Lordosis (Swayback)
- Low Birth Weight
- Low Blood Pressure
- Low Estrogen
- Low Libido (Low Sex Drive)
- Low Milk Supply
- Low Progesterone
- Low Testosterone (Male Hypogonadism)
- Low Testosterone in Women
- Low Vision
- Low White Blood Cell Count (Leukopenia)
- Lower Back Pain
- Lower Right Back Pain
- Ludwig’s Angina
- Luminal A Breast Cancer
- Luminal B Breast Cancer
- Lung Cancer
- Lung Carcinoid Tumors
- Lupus (Systemic Lupus Erythematosus)
- Lupus in Children
- Lupus Nephritis
- Luteal Phase Defect
- Lyme Disease
- Lymphangioleiomyomatosis (LAM)
- Lymphangitis
- Lymphatic Filariasis (Elephantiasis)
- Lymphedema
- Lymphocytic Colitis
- Lymphocytosis
- Lymphogranuloma Venereum (LGV)
- Lymphoma
- Lymphopenia
- Lymphoproliferative Disorders
- Lynch Syndrome and HNPCC
- Lysosomal Storage Diseases