In democratic elections, there are winners and losers. Often the losers in an election believe so strongly that their party or candidate is the best one that they refuse to accept the results of the election. This is against democratic principles. The consequences of not accepting the result of an election may be a government that is ineffective and cannot make decisions. It may even result in violence which is also against democracy.

From Principles of Democracy
Information given by Mr. Myat Ko Ko