The cause and effect essay is written on the reason of the happening and explains about the results of the occurrence. We can discuss both causes and effects in a cause effective essay, but it depends upon the requirement of the topic. It is not necessary to use both aspects; you can use either causes or effects. It is quite obvious that in this kind of essay, you are to answer “what” and “why”. So you may begin writing your cause effect essay on the following guidelines: 1  Start your essay explaining event and then tell about its outcome. 2  You can also state a problem following its causes and then results.