This study introduces the design and evaluation of a compact wearable textile antenna aimed at medical applications, particularly in wireless body area networks (WBANs), telemedicine, medical implant communication, wearable health tracking, and point-of-care diagnostics. The antenna, with dimensions of \(0.28\lambda \times 0.25\lambda \) , operates at a resonant frequency of 12 GHz. It employs jeans textile as the substrate material, which has a thickness of 1.67 mm and a dielectric constant of 1.28 and loss tangent of 0.016. Extensive parametric and bending analyses have been performed to assess the antenna’s performance under varying conditions. The antenna achieves a substantial bandwidth of 1.01 GHz which qualifies the UWB operations, a gain of 8.17 dBi, and a reflection coefficient of -43 dB, indicating superior impedance matching. These findings highlight the antenna’s capability for effective and reliable use in wearable medical devices.