Molecular medicine is a board area where physical, chemical, biological, bioinformatical techniques can be used to find the molecular structure. It is a link between medical sciences and bioinformatics. Molecular medicine helps in estimating the genetic errors of a disease to contrive new molecular techniques for the treatment of the disease. Molecular Medicine is a new stream of regulation derived from Molecular Biology in European Universities. Sequencing of whole genome and finding the gene responsible for a disease is difficult and time taking. Unfortunately finding the gene responsible for the disease alone does not lead to cure. Hence, to develop a therapy we need to understand where and when the particular gene will be expressed and also their functions when the person is normal and when the person is diseased.