- Music therapy
- Musical hallucinations
- Musicogenic epilepsy
- Musk
- Mustard gas
- Mustard oil
- Mustard plasters
- Mustard procedure
- Mutagenesis
- Mutagenicity
- Mutagens
- Mutanome
- Mutants
- Mutated citrullinated vimentin
- Mutation accumulation
- Mutation breeding
- Mutation frequency
- Mutation rate
- MutationTaster
- Mutations
- Muteness
- Muti
- Mutualism
- My Health Record
- Myalgia
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- Mycobacterium fortuitum
- Mycobacterium gordonae
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- Mycobacterium intracellulare
- Mycobacterium kansasii
- Mycobacterium leprae
- Mycobacterium lepromatosis
- Mycobacterium malmoense
- Mycobacterium scrofulaceum
- Mycobacterium smegmatis
- Mycobacterium tuberculosis
- Mycobacterium tuberculosis complex
- Mycobacterium ulcerans
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- Mycobacterium xenopi
- Mycobiome
- Mycobiota
- Mycolactone
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- Mycology
- Mycophenolate mofetil
- Mycophenolic acid
- Mycoplasma
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- Mycoplasma genitalium
- Mycoplasma hominis
- Mycoplasma hyopneumoniae
- Mycoplasma penetrans
- Mycoplasma pneumonia
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- Mycoplasmataceae
- Mycosamine
- Mycosis
- Mycosis fungoides
- Mycothiol
- Mycotic aneurysm
- Mycotoxicosis
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- Myelencephalon
- Myelin
- Myelin protein zero
- Myelin sheath
- Myelin-associated glycoprotein
- Myelination
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- Myelodysplastic syndrome
- Myelofibrosis
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- Myeloid
- Myeloid cells
- Myeloid leukemia
- Myeloid sarcoma
- Myeloid tissue
- Myeloid-derived suppressor cells
- Myelokathexis
- Myeloma
- Myeloma cast nephropathy
- Myelomalacia
- Myelopathy
- Myeloperoxidase
- Myeloperoxidase deficiency
- Myelopoiesis
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- Myenteric plexus
- Myerson's sign
- Myiasis
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- Mylohyoid muscle
- Myoblasts
- Myocardial
- Myocardial bridge
- Myocardial contusion
- Myocardial depressant factor
- Myocardial infarction
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- Myocardial revascularization
- Myocardial rupture
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- Myocardial stunning
- Myocarditis
- Myoclonic astatic epilepsy
- Myoclonic dystonia
- Myoclonic epilepsy
- Myoclonus
- Myocytes
- Myocytolysis
- Myod
- Myoepithelial cells
- Myoepithelioma
- Myofascial pain
- Myofascial pain syndrome
- Myofascial release
- Myofascial trigger point
- Myofibrils
- Myofibroblasts
- Myofilament
- Myogenesis
- Myogenic mechanism
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- Myogenic response
- Myogenic tone
- Myogenin
- Myoglobin
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- Myokines
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