For five days, I had a pain in my left calf like a muscle crampcramp/kræmp/L2肌肉痉挛，抽筋a sudden, painful tightening of a muscle, often caused by overuse or strain. It got worse, and my leg became swollenswollen/ˈswoʊlən/L1肿胀的；比正常大bigger than usual because of injury or sickness and tender. I used an AI health tool that I built myself, and it said I might have a blood clotclot/klɒt/L2血块，凝块a thick, semi-solid mass of blood that can block blood flow in a vein or artery. This condition can become deadly if a clot moves to the lungs.
So I went to the emergencyemergency/ɪˈmɜːrdʒənsi/L2紧急情况，急诊a serious, unexpected situation that requires immediate action room. Doctors did an ultrasoundultrasound/ˈʌltrəsaʊnd/L2超声波检查a medical test that uses sound waves to create images of the inside of the body and found four blood clots in my leg. They gave me medicinemedicine/ˈmɛdɪsɪn/L1药；治疗疾病的物质something you take to make you better when you are sick to thin my blood. Later, I learned that my wife's grandfather died from a lung clot. Also, the mother of a close friend died the same way.
The AI did not replace the doctors, who did the important work. However, the AI helped me ask the right question in time. As the author says, 'My lesson is not that everyone should outsource their health to software. It is that patient advocacy now has a new tool.' AI can help patients, but doctors are still essential, and we need regulation to make AI safe.
