The present disclosure relates to a method and apparatus for determining whether an electronic device contacts a fluid or not. The electronic device may include: a housing; at least one sensor arranged in the housing; a coupling member connected to a part of the housing and configured to detachably couple the electronic device to a part of a body of a user; a conductive member arranged on a surface of the housing or on a surface of the coupling member and exposed to an outside while being electrically connectible to the at least one sensor; a processor electrically connected to the at least one sensor and the conductive member; and a memory electrically connected to the processor. The processor determines whether the conductive member has contacted a fluid or not using the at least one sensor and executes a second action at least partially based on the determination.