ITHome October 24 news: today, a topic titled "Son uses AI to buy life-saving time for his father" drew attention on social media and at one point topped Weibo's trending list.
According to multiple media reports including Qingdao Broadcasting and Television's "Pioneer News", Yu Jianjin, a post-90s young man from Liaocheng, Shandong, saw his father suddenly develop weak legs and difficulty swallowing after returning home from a walk. Yu did not choose to "keep observing"; instead, he sent the symptoms together with his father's history of the "three highs" to Doubao.
Doubao's reply did not stop at triage advice. According to Mr. Yu, the AI's very first sentence was "Signs of cerebral infarction, seek medical attention immediately." After he added the elderly man's medical history, Doubao issued another warning: "This is a high-risk signal, do not delay." After the two warnings, Mr. Yu drove his father to the hospital overnight, where he was diagnosed with acute cerebral infarction. Thanks to timely treatment, the elderly man was within the roughly 4.5-hour golden window for intravenous thrombolysis for stroke. He is now recovering well with no after-effects.
Mr. Yu later shared the experience on social media, saying "You could say Doubao saved my dad's life." In an interview with the Yangzi Evening News, he also said that without timely treatment, a stroke patient's risk of hemiplegia and aphasia rises rapidly over time: "Without Doubao, my father's life and our whole family's life might have changed dramatically."
From a medical perspective, the core variable in stroke treatment is time. Public science communication information from the Third Medical Center of the Chinese PLA General Hospital points out that receiving intravenous thrombolysis within 4.5 hours of onset can improve the rate of good prognosis by 33%; with every minute of delay, brain cell deaths increase by the millions.
What is noteworthy about this case is not that the AI "diagnosed" the stroke, but that at a point where an ordinary person tends to hesitate, it intercepted a "which department should I book tomorrow" inquiry and turned it into a "go to the emergency room now" directive. Yu Jianjin's initial plan was to wait until daybreak to go to the hospital, because the symptoms did not seem serious. The AI's two replies — the first based on the symptoms themselves, the second escalating the warning after the "three highs" history was added — changed his decision.
ITHome reminds readers that this case does not mean AI can replace medical diagnosis. Li Shujuan, chief physician of neurology at Fuwai Hospital, Chinese Academy of Medical Sciences, said when evaluating such applications that from the perspective of public education, acute-condition alerts, and triage reference, AI is indeed helpful for recognizing hidden emergencies and avoiding delays; but AI's risk judgments and diagnostic reasoning can only serve as reference and cannot replace an in-person doctor consultation. She cautioned that people can use AI to learn in advance which department to book and to organize medical history, but should not follow AI advice to self-medicate or use it as a reason to delay seeking emergency care.