Wang Tianqing, a man from Zhangjiakou City, Hebei Province, China, experienced a shocking revelation during a hospital visit for epilepsy treatment. A CT scan revealed a bullet lodged in his brain, which had been there for 23 years without his knowledge. The injury occurred in 1988 when he felt a blow to his head, which he attributed to a stone or slingshot pellet. Medical professionals were astonished by the discovery, as the bullet had remained undetected for decades. It was determined that the bullet's low-velocity impact allowed it to settle safely in his skull, avoiding major brain structures and preventing significant health issues. This case highlights that while such incidents are not rare, the symptoms depend on the bullet's location and its effect on brain tissue. In Tianqing's case, the bullet is believed to have contributed to his epilepsy, which would have gone unnoticed without modern medical imaging.