- Malaria
- Male infertility
- Malnutrition - general
- Marbug virus disease
- Maternal care - Cervical incompetence
- Measles
- Medical abortion
- Meningitis
- Meningococcal infection
- Menopausal bleeding
- Menorrhagia
- Mental and behavioural disorders - general
- Methods
- Migraine
- Miliary Tuberculosis
- Mitral stenosis
- Mixed intestinal helminthiases
- Molluscum contagiosum
- Mouth cancer
- Multiple gestation
- Mumps
- Myopia