Fractals are mathematical constructs characterized by self-similarity and can theoretically possess infinite perimeters. However, in the physical world, actual fractals cannot exhibit infinite lengths due to limitations imposed by the Planck scale, which represents the smallest measurable length where quantum effects become significant. The discussion highlights the distinction between mathematical ideals and physical realizations, noting that true fractals do not exist in nature. The Planck length is defined using fundamental constants, indicating a boundary where classical physics transitions to quantum mechanics. Ultimately, while fractals can have infinite perimeters mathematically, physical constraints prevent their realization in the real world.