Labial Adhesions
Labyrinthitis
Lactic Acidosis
Lactose Intolerance
Lagophthalmos
Lambert-Eaton Myasthenic Syndrome (LEMS)
Lamb-Shaffer Syndrome (LAMSHF)
Landau-Kleffner Syndrome (LKS)
Langerhans Cell Histiocytosis
Langya Henipavirus
Large Granular Lymphocytic Leukemia
Laryngeal Cancer
Laryngeal Cleft
Laryngeal Papillomatosis
Laryngitis
Laryngomalacia
Laryngopharyngeal Reflux (LPR)
Laryngospasm
Laser Hair Removal
LASIK Eye Surgery
Lassa Fever
Latex Allergy
LCL Tears
LDL Cholesterol, High
Lead Poisoning
Leaky Gut Syndrome
Leaky Heart Valve
Leber Hereditary Optic Neuropathy (LHON)
Leber’s Congenital Amaurosis
Ledderhose Disease
Left Anterior Fascicular Block
Left Ventricular Hypertrophy
Left-Side Chest Pain
Left-Sided Heart Failure
Leg Cramps
Leg Ulcers
Legionnaires’ Disease
Leigh Syndrome (Leigh’s Disease)
Leiomyosarcoma
Leishmaniasis
Lennox-Gastaut Syndrome (LGS)
Leprosy (Hansen’s Disease)
Leptomeningeal Disease
Leptospirosis
Lesch-Nyhan Syndrome
Lethargy
Leukemia
Leukocoria
Leukodystrophy
Leukophobia (Fear of the Color White)
Leukoplakia
Levoscoliosis & Dextroscoliosis
Lewy Body Dementia
Lichen Nitidus
Lichen Planopilaris
Lichen Planus
Lichen Sclerosus
Lichen Spinulosus
Li-Fraumeni Syndrome
Lilapsophobia (Fear of Tornadoes or Hurricanes)
Limb-Girdle Muscular Dystrophy (LGMD)
Lip Cancer
Lipedema
Lipodystrophy
Lipohypertrophy
Lipoma
Liposarcoma
Lipschütz Ulcer
Lisfranc Fracture
Lissencephaly
Listeriosis
Lithium Toxicity
Liver Cancer
Liver Cysts
Liver Disease
Liver Failure
Liver Hemangioma
Liver Lesions
Liver Spots
Lobular Breast Cancer (Invasive Lobular Carcinoma)
Lobular Carcinoma in Situ (LCIS)
Locked-in Syndrome (LiS)
Loeys-Dietz Syndrome
Loiasis
Long QT Syndrome (LQTS)
Lordosis (Swayback)
Loss of Appetite
Loss of Taste and Smell
Low Back Pain
Low Birth Weight
Low Blood Pressure
Low Estrogen
Low Hemoglobin
Low Libido (Low Sex Drive)
Low Milk Supply
Low Progesterone
Low Testosterone (Male Hypogonadism)
Low Testosterone in Women
Low White Blood Cell Count (Leukopenia)
Lower Abdominal Pain
Lower Urinary Tract Symptoms (LUTS)
Ludwig’s Angina
Lump on Testicle (Scrotal Masses)
Lung Cancer
Lung Carcinoid Tumors
Lupus (Systemic Lupus Erythematosus)
Lupus Nephritis
Luteal Phase Defect
Lyme Disease
Lymphangioleiomyomatosis (LAM)
Lymphangioma
Lymphangitis
Lymphedema
Lymphocytic Colitis
Lymphocytosis
Lymphogranuloma Venereum (LGV)
Lymphoma
Lymphopenia
Lynch Syndrome
Lysosomal Storage Diseases