Minimized Featured Space Particle Swarm Optimization(MFSPSO) is a modified version of the evolutionary algorithm PSO. The main objective is to minimize the number of genes in case of detecting different kinds of cancerous diseases. The MFSPSO can be applied to any type of datasets and for various fields of studies such as: Pattern Recognition, Data Mining, Image Processing and so on. I hope this will take a great deal in modern medical science.