Abella sometimes known as Abella of Salerno was a mid-14th century Roman physician who taught general medicine at the Salerno school of medicine.
In particular he draws many ideas from the philosophical writings of the Salernitan medical master Urso of Calabria, particularly De commixtionibus elementorum on humoral theory.
The Salerno Medical School reached the height of its glory between the 10th and 13th centuries, especially due to the contribution of Alphanus of Salerno and Constantine the African, who deemed Salerno worthy of the name of “City of Hippocrates” (Hippocratica Civitas), after the well-known Greek physician and mathematician.