Histopathological stains - a review

Various ways of histopathological staining has been carried out in today's laboratories through advancements by way of chemical, molecular biology assays and immunological techniques. At early years, only the readily commercially available chemicals available for staining purpose were Potassium dichromate, alcohol and the mercuric chloride to harden the cellular tissue varieties. Staining techniques available during those times were Carmine, Silver nitrate, Gram's, Giemsa, Trichrome and Hematoxylin. In modern histopathological procedures, it has been proved that various combination of the different staining procedures would enhance the staining process efficiency and results. In this article, we have analyzed the different varieties of stains and its efficiency.