All illnesses


Menstrual problems


Mental function


Metabolic problems


Metabolic syndrome


Methicillin-resistant Staphylococcus aureus (MRSA)


Methotrexate side effects


Migraine headache


Milk sensitivity (lactose intolerance)


Mitral valve prolapse (heart valve disease)


Moles


Morning sickness


Mosquito repellent


Motion sickness


Mouth cancer


Mouth ulcer


Multiple myeloma (bone marrow cancer)


Multiple sclerosis (MS)


Mumps


Muscle cramps


Muscle problems


Muscle problems in the esophagus


Muscle spasms


Muscle spasms in the mouth (palatal myoclonus)


Muscle strength


Muscular dystrophy (muscle wasting)


Myelodysplastic syndrome (blood cell disease)


Nasal congestion


Nausea


Necrotizing enterocolitis NEC (intestinal infection)


Nerve damage