32P released β-rays can directly or indirectly ionize and destroy DNA molecular structure, inhibit cell division and proliferation, inhibit fibroblast migration, proliferation and collagen synthesis and secretion, weaken immune cell function and reduce dysfunctional blood vessels, strongly inhibit inflammatory reaction, and can also effectively induce cell apoptosis and reduce TGF-β [19], Reduce the synthesis of extracellular matrix and collagen fiber, thus inhibiting the formation of keloid. The gene discussed is TGFB1; the disease is keloid.