Systems, methods and apparatuses for performing wound analysis using THz imaging are provided. Due to the large complex component of water's dielectric constant in the THz regime, and the relative frequency invariance of non-aqueous tissue constituents, this modality is highly sensitive to the water content of tissue. It has been found that using THz imaging turns the presence of edema into a contrast mechanism, and allows for the use of the spatial distributions of edema to assess wound status immediately. Apparatus and methods enable earlier diagnosis of wound status which could result in accelerated treatment and shorter overall hospital stays.