  Stellar coronal mass ejections (CMEs) are a growing research field,
especially during the past decade. The large number of so far detected
exoplanets raises the open question for the CME activity of stars, as CMEs may
strongly affect exoplanetary atmospheres. In addition, as CMEs contribute to
stellar mass- and angular momentum loss and are therefore relevant for stellar
evolution, there is need for a better characterization of this phenomenon. In
this article we review the different methodologies used up to now to attempt
the detection of stellar CMEs. We discuss the limitations of the different
methodologies and conclude with possible future perspectives of this research
field.
