Histological studies employ various techniques to visualize COL3A1. Immunohistochemistry (IHC) is a common method that uses specific antibodies to detect type III collagen in tissue sections. This technique can reveal the distribution and abundance of COL3A1 in different tissues. Additionally, Masson's Trichrome Staining is often used to differentiate collagen fibers from other tissue components, allowing researchers to assess the presence of type III collagen in histological samples.