| Acnee | Acnee juvenila | Acnee rozacee |
| Acuitate vizuala (diminuare) | Adenom de prostata | Adenopatie |
| Aerocolie | Alergie cutanata | Alergie respiratorie |
| Anexita | Angina(amigdalita) | Angor pectoris |
| Anxietate | Aritmie | Arteriopatie obliteranta |
| Arterioscleroza | Artralgie | Artrita gutoasa |
| Artrita reumatoida | Ascaridioza | Astenie |
| Astenie sexuala | Astm bronsic | Ateromatoza |