Africa 
China 
Japan 
MENA 
- 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
- Myasthenia gravis
- Myc-tag
- Mycetoma
- Mycin
- Myclobutanil
- Mycobacteria
- Mycobacteriaceae
- Mycobacterium
- Mycobacterium abscessus
- Mycobacterium africanum
- Mycobacterium avium
- Mycobacterium avium complex
- Mycobacterium fortuitum
- Mycobacterium gordonae
- Mycobacterium haemophilum
- Mycobacterium intracellulare
- Mycobacterium kansasii
- Mycobacterium leprae
- Mycobacterium lepromatosis
- Mycobacterium malmoense
- Mycobacterium scrofulaceum
- Mycobacterium smegmatis
- Mycobacterium tuberculosis
- Mycobacterium tuberculosis complex
- Mycobacterium ulcerans
- Mycobacterium vaccae
- Mycobacterium xenopi
- Mycobiome
- Mycobiota
- Mycolactone
- Mycolic acid
- Mycology
- Mycophenolate mofetil
- Mycophenolic acid
- Mycoplasma
- Mycoplasma fermentans
- Mycoplasma genitalium
- Mycoplasma hominis
- Mycoplasma hyopneumoniae
- Mycoplasma penetrans
- Mycoplasma pneumonia
- Mycoplasma pneumoniae
- Mycoplasmataceae
- Mycosamine
- Mycosis
- Mycosis fungoides
- Mycothiol
- Mycotic aneurysm
- Mycotoxicosis
- Mycotoxins
- Mydriasis
- Mydriatic agent
- Myelencephalon
- Myelin
- Myelin protein zero
- Myelin sheath
- Myelin-associated glycoprotein
- Myelination
- Myelitis
- Myeloblastin
- Myeloblasts
- Myelocytes
- Myelodysplastic syndrome
- Myelofibrosis
- Myelography
- Myeloid
- Myeloid cells
- Myeloid leukemia
- Myeloid sarcoma
- Myeloid tissue
- Myeloid-derived suppressor cells
- Myelokathexis
- Myeloma
- Myeloma cast nephropathy
- Myelomalacia
- Myelopathy
- Myeloperoxidase
- Myeloperoxidase deficiency
- Myelopoiesis
- Myeloproliferative disease
- Myeloproliferative neoplasm
- Myenteric plexus
- Myerson's sign
- Myiasis
- Mylanta
- Mylohyoid muscle
- Myoblasts
- Myocardial
- Myocardial bridge
- Myocardial contusion
- Myocardial depressant factor
- Myocardial infarction
- Myocardial ischemia
- Myocardial perfusion imaging
- Myocardial revascularization
- Myocardial rupture
- Myocardial scarring
- 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
- Myogenic regulatory factors
- Myogenic response
- Myogenic tone
- Myogenin
- Myoglobin
- Myoglobinuria
- Myokines
- Myokymia