Answer :
Nature, disillusion, death and suffering are the most recurring themes in Ernest Hemingway's writings
Explanation:
Most of his stories are described/written with a background of suffering and pain. In his childhood and youth, Hemingway experienced grief, suffering, ruthless behavior. These aspects are clearly felt and understood when we read his stories. Each story has a varied explanation of its own but underlying themes are similar to each other.
Nature and its avid creations are one of the most prominently described aspects in his stories. Beautiful creatures, mountains, valleys and scenery give a deeper sense to his story and characters in it. Disillusion and death are always a part of his stories. Either a character that is dear/beloved to another dies or is about to leave the one in remorse in his stories which creates a vivid image for reader to feel the suffering along with character in the story.
Masculinity is another theme usually depicted in a subjective way by Hemingway where he compares it with hunting/killing/standing up against another living being (usually animals).
His stories from which, we can quote examples of the same themes are:
The Nick Adams stories, The Snows of Kilimanjaro, The Old man and the Sea, The Old man at the bridge, A day's wait, Up in Michigan.