Presently, the popularity of mobile phones has brought about a lot of convenience, but at the meanwhile a variety of problems as well, such as social, medical and technical problems. However, I do not think these disadvantages will outweigh the advantages brought by cell phones. In this essay, I would like to analyse these three issues in order to support my viewpoint. First of all, almost everything that changed our life style will also cause some controversial social issues. Mobile phones are not out of expectation.