Abstract: Performance of the West African Senior School Certificate Examination (WASSCE) has fallen over the years in Sierra Leone which has caused alarm in all sectors in society. The purpose of the study is to investigate the causes and effects of massive WASSCE failure in Sierra Leone and its possible solutions, taking Senior Secondary Schools in Port Loko City as a Case study. A descriptive approach was used for the research study using self-designed questionnaire (mixed), focus group discussion and observation to collect data from the respondents. Results from findings reveals that the major cause for massive WASSCE failure was as a result of incompetency of the students, which leads to heavy cost on government nonetheless if proper monitoring is instituted by parents and the Ministry (MBSSE) the causes and effects will be lessen.