| M.D. profession |
| Macroglossia |
| Macrophage |
| Macrosomia |
| Macula |
| Macula lutea |
| Male condoms |
| Male reproductive changes |
| Malignancy |
| Malpresentations |
| Mammogram – calcifications |
| Mammogram – recommended age |
| Margarine vs. butter |
| Maternal drug abuse |
| Maturation – sexual |
| Measles – mumps – rubella (MMR) vaccine |
| Mechanical ventilator – infants |
| Meconium |
| Medial |
| Medical emergencies – how to recognize them |
| Medications – how to get prescription filled |
| Medications for pain |
| Medications to have at home |
| Medicine storage |
| Melanin |
|
| Memory aids |
| Menarche |
| Menstrual cramp relief |
| Menstrual periods and bloating |
| Metabolism |
| Metabolite |
| Metastasis |
| Metastatic cancer |
| Metered-dose inhaler administration |
| Migraine – resources |
| Milk and children |
| MMR – vaccine |
| Molding of the newborn’s head |
| Morning-after pill |
| Mucopolysaccharides |
| Mucosa |
| Mucous membrane |
| Multiple sclerosis – resources |
| Mumps vaccination |
| Muscle strain treatment |
| Muscle weakness associated with aging |
| Muscular dystrophy – resources |
| Myasthenia gravis – resources |
| Myelin |
| MyPyramid |
|