Crimson Hyphae is a variant of crimson stems with bark on all six sides, primarily used as a decorative building block. It can be crafted from four crimson stems or obtained naturally in crimson forests within the Nether.

It is mainly used for crafting crimson planks, campfires, smokers, and soul campfires. Unlike wood, hyphae cannot be used as fuel in furnaces. It can be stripped into stripped Crimson Hyphae using an axe. When placed under a note block, it produces a bass sound.