L

• Lactase deficiency (See: Lactose intolerance)
• Lactation mastitis (See: Mastitis)
• Lactose intolerance
• Laminectomy
• Laryngeal cancer (See: Throat cancer)
• Laryngitis
• Laryngospasm
• Lassa fever (See: Viral hemorrhagic fevers)
• Lateral epicondylitis (See: Tennis elbow)
• Latex allergy
• Lazy eye (amblyopia)
• LCIS (See: Lobular carcinoma in situ (LCIS))
• Lead poisoning
• Left ventricular hypertrophy
• Leg fracture (See: Broken leg)
• Legg-Calve-Perthes disease
• Legionellosis (See: Legionnaires' disease)
• Legionnaires' disease
• Leiomyomas (See: Uterine fibroids)
• Lentigines, solar (See: Age spots (liver spots))
• Leukemia
• Leukemia, acute lymphocytic (childhood leukemia) (See: Acute lymphocytic leukemia)
• Leukemia, acute myelogenous (See: Acute myelogenous leukemia (AML))
• Leukemia, chronic lymphocytic (See: Chronic lymphocytic leukemia)
• Leukemia, chronic myelogenous (See: Chronic myelogenous leukemia)
• Leukemia, general (See: Leukemia)
• Leukemia, hairy cell (See: Hairy cell leukemia)
• Leukoplakia
• Lewy body dementia
• Lice
• Lice, body (See: Body lice)
• Lichen nitidus
• Lichen planus
• Lichen planus, oral (See: Oral lichen planus)
• Lichen sclerosus
• Lichen simplex chronicus (See: Neurodermatitis)
• Ligament sprain (See: Sprains and strains)
• Limited scleroderma (CREST syndrome)
• Lip cancer (See: Mouth cancer)
• Lipodystrophy, intestinal (See: Whipple's disease)
• Lipoma
• Listeria infection
• Listeriosis (See: Listeria infection)
• Lithiasis, renal (See: Kidney stones)
• Livedo reticularis
• Liver cancer
• Liver cysts
• Liver failure, acute (See: Acute liver failure)
• Liver hemangioma
• Liver problems
• Liver spots (See: Age spots (liver spots))
• Liver, enlarged (See: Enlarged liver)
• Lobular carcinoma in situ (LCIS)
• Lockjaw (See: Tetanus)
• Long QT syndrome
• Lou Gehrig's disease (See: Amyotrophic lateral sclerosis)
• Low amniotic fluid
• Low blood pressure (hypotension)
• Low blood sugar (See: Hypoglycemia)
• Low body temperature (See: Hypothermia)
• Low platelet count (See: Thrombocytopenia)
• Low sex drive in women
• Low sperm count
• Low-flow priapism (See: Priapism)
• Lung cancer
• Lung collapse (See: Pneumothorax)
• Lung disease, interstitial (See: Interstitial lung disease)
• Lung nodules
• Lupus
• Lyme disease
• Lymph nodes, swollen (See: Swollen lymph nodes)
• Lymphadenitis (See: Swollen lymph nodes)
• Lymphadenitis, mesenteric (See: Mesenteric lymphadenitis)
• Lymphedema
• Lymphocytic colitis (See: Microscopic colitis)
• Lymphoma, Hodgkin's (See: Hodgkin's lymphoma)
• Lymphoma, non-Hodgkin's (See: Non-Hodgkin's lymphoma)
• Lynch syndrome