Abstract: Cell death is a major physiological or pathological phenomenon in life activities. The classic forms of cell death
include apoptosis, necrosis, and autophagy. Recently, a novel type of cell death has been observed and termed as methuosis, in
which excessive stimuli can induce cytoplasmic uptake and accumulation of small bubbles that gradually merge into giant
vacuoles, eventually leading to decreased cellular metabolic activity, cell membrane rupture and cell death. In this article, we
describe the nomenclature, morphological characteristics and underlying mechanisms of methuosis, compare methuosis with
autophagy, oncosis and paraptosis, and review the related researches.