Conditions beginning with the letter "M"

  | Macular Degeneration (Age-related Macular Degeneration, AMD) |
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  | Mad Cow Disease (Bovine Spongiform Encephalopathy, BSE) |
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  | Malaria (Tropical Diseases, Parasitic Infection) |
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  | Male Menopause (Andropause, Low Testosterone, Manopause, Testosterone Deficiency) |
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  | Malignancy (Cancer, Tumours) |
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  | Mammary Cancer (Breast Cancer, Cancer of the Breast) |
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  | Mammary Dysplasia (Fibrocystic Breast Disease, Breast Disease - Benign, Lumpy Breasts, Chronic Cystic Mastitis) |
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  | Manic Depression (Bipolar Disorder, Bipolar Affective Disorder) |
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  | Manopause (Andropause, Low Testosterone, Male Menopause, Testosterone Deficiency) |
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  | Marfan's Syndrome |
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  | Mastitis (Breast Infection) |
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  | Measles (Rubeola, Morbilli, Red Measles) |
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  | Median Nerve Dysfunction (Carpal Tunnel Syndrome, Wrist Problems) |
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  | Melanoma (Skin Cancer, Cancer of the Skin, Skin Tumour) |
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  | Ménière's Disease |
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  | Meningitis (Inflammation of the Meninges) |
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  | Menopause (Change of Life, Climacteric) |
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  | Menstrual Cramps (Dysmenorrhea, Period Cramps) |
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  | Metabolic Syndrome (Syndrome X, Insulin Resistance Syndrome) |
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  | MI (Heart Attack, Myocardial Infarction) |
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  | Migraine (Headaches, Tension Headache, Sinus Headache, Cluster Headache) |
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  | Migraine (Migraine Headache) |
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  | Migraine Headache (Migraine) |
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  | Mini-stroke (Transient Ischemic Attack, TIA) |
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  | Mite Infestation (Scabies, Body Lice) |
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  | Mitral Valve Prolapse (MVP, Heart Murmur) |
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  | Mono (Infectious Mononucleosis, Epstein-Barr Virus, Glandular Fever) |
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  | Monochromatism (Colour Blindness, Deuteranopia, Protanopia, Colour Vision Deficiency) |
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  | Morbilli (Measles, Rubeola, Red Measles) |
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  | Morning Sickness |
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  | Morphea (Scleroderma, Systemic Sclerosis) |
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  | Motion Sickness (Travel Sickness, Seasickness) |
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  | Mountain Sickness (Altitude Sickness, High Altitude Sickness) |
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  | Mouth Cancers (Oral Cancers, Cancer of the Mouth) |
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  | Mouth Ulcers (Canker Sores, Aphthous Ulcers) |
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  | MS (Multiple Sclerosis) |
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  | Multiple Myeloma (Myeloma, Plasma Cell Myeloma) |
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  | Multiple Sclerosis (MS) |
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  | Mumps (Epidemic Parotitis, Parotitis) |
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  | Muscle Weakness (Myasthenia Gravis) |
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  | Muscular Dystrophy (Duchenne Muscular Dystrophy, Becker's Muscular Dystrophy, Facioscapulohumeral Muscular Dystrophy, Limb-girdle Muscular Dystrophies) |
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  | MVP (Mitral Valve Prolapse, Heart Murmur) |
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  | Myalgic Encephalomyelitis (ME) (Chronic Fatigue Syndrome, Chronic Fatigue Immune Dysfunction Syndrome (CFIDS)) |
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  | Myasthenia Gravis (Muscle Weakness) |
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  | Myeloma (Multiple Myeloma, Plasma Cell Myeloma) |
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  | Myocardial Infarction (Heart Attack, MI) |
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  | Myopia (Nearsightedness) |
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