| Macrocephalia | find1 | |||
| Macroglosia | find1 | |||
| Macula | find1 | |||
| Malleolar pressure | find1 | |||
| Mallory-Weiss syndrome | find1 | |||
| Mania | find1 | |||
| Maragnon's maculae | find1 | |||
| Marfan´s syndrome | find1 | find2 | ||
| McBurney´s point | find1 | |||
| Meiosis (narrowing) | find1 | |||
| Melena | find1 | |||
| Meningeal irritation | find1 | find2 | ||
| Mental anorexia | find1 | |||
| Mesocephalic shape the head | find1 | |||
| Mesogastrium | find1 | find2 | ||
| Microcephalia | find1 | |||
| Mitral opening sound | find1 | |||
| Mitral regurgitation | find1 | |||
| Mitral stenosis | find1 | find2 | find3 | find4 |
| Morbilli (measles) | find1 | |||
| Movements abnormal | find1 | |||
| Movements athetoid | find1 | |||
| Movements choreatic | find1 | |||
| Murmur | find1 | |||
| Murmur Austin Flint's | find1 | |||
| Murmur Bellows (blowing) | find1 | |||
| Murmur continuous | find1 | |||
| Murmur crescendo | find1 | |||
| Murmur crescendo - decrescendo | find1 | |||
| Murmur decrescendo | find1 | |||
| Murmur diastolic | find1 | find2 | find3 | |
| Murmur frictional | find1 | find2 | ||
| Murmur Graham's and Steell´s | find1 | |||
| Murmur harsh (rough) | find1 | |||
| Murmur machinery | find1 | |||
| Murmur musical | find1 | |||
| Murmur presystolic | find1 | find2 | ||
| Murmur systolic | find1 | find2 | find3 | |
| Murmur vascular | find1 | |||
| Mydriasis (dilatation) | find1 | |||
| Myxoedema | find1 | find2 | ||
| Naevus arachnoideus | find1 | foto | foto | foto |
| Nails deformed | find1 | |||
| Nails hepatic | find1 | |||
| Nails spherical | find1 | |||
| Nanism | find1 | |||
| Nanism disproportional | find1 | |||
| Nanism in case of cretinism | find1 | |||
| Nanism in case of premature puberty | find1 | |||
| Nanism pituitary | find1 | |||
| Nausea | find1 | find2 | ||
| Noises breathing | find1 | |||
| Noises dry (whistling, squeaking, or crackling) | find1 | |||
| Noises wet | find1 | |||
| Nystagmus | find1 | |||
| Obesity | find1 | foto | ||
| Obesity diffuse | find1 | |||
| Obesity truncal | find1 | |||
| Obnubilation | find1 | |||
| Oedema of the lung | find1 | find2 | ||
| Oedema - right heart failure | find1 | find2 | find3 | |
| Oedemas | find1 | find2 | find3 | foto |
| Oedemas - allergic | find1 | |||
| Oedemas - cardiac | find1 | |||
| Oedemas - hepatic | find1 | |||
| Oedemas - hypoproteinaemic | find1 | find2 | ||
| Oedemas - inflammatory | find1 | |||
| Oedemas - local | find1 | |||
| Oedemas - lymphoedemas | find1 | find2 | find3 | foto |
| Oedemas - myxoedemas | find1 | |||
| Oedemas - phlebothrombosis | find1 | find2 | foto | |
| Oedemas - renal | find1 | |||
| Oedemas - systemic | find1 | |||
| Oedemas - Venostasic | find1 | |||
| Oesophagus varicosities | find1 | |||
| Onychomycosis | find1 | |||
| Opening snap | find1 | |||
| Opisthotonus | find1 | |||
| Orthopneic | find1 | foto | ||
| Osler nodes | find1 | |||
| Ovarian dysgenesis | find1 |