Popular Japanese YouTuber Hajime Syacho has found himself at the centre of an online debate after sharing a video about his infant daughter's recent medical emergency.

The content creator, who has more than 16 million subscribers on YouTube (@hajimesyacho), revealed that his baby daughter had to be rushed to hospital after developing a high fever of 41°C last month.

In the video, he also included footage showing the child appearing visibly weak with trembling hands and purple lips — a symptom known as cyanosis, which can indicate a lack of oxygen. She also appeared to exhibit symptoms consistent with a febrile seizure.

While Hajime explained that the recordings were originally made to help doctors assess his daughter's condition, some viewers questioned his decision to later upload it to YouTube.

Many parents came to his defence, arguing that the footage could help others recognise warning signs of serious illness in young children and know when to seek medical attention.

Others, however, felt that sharing such a vulnerable moment crossed a line.

"Recording it for medical purposes is understandable, but was it really necessary to show it to everyone online?" wrote one commenter.

Another said they felt conflicted seeing footage of a distressed child shared with millions of viewers.

The incident has reignited a familiar conversation about influencers and content creators featuring their children online.

While some argue that such videos can educate and raise awareness, critics point out that children are often too young to consent to having deeply personal moments shared with a massive audience.

Hajime has maintained that his intention was to alert other parents to the dangers of high fevers in infants.

He also encouraged caregivers to record symptoms during medical emergencies, if possible, as videos can help doctors make more accurate assessments.

So where should content creators draw the line when it comes to sharing their children's most private moments online?

Photos: はじめしゃちょー（hajime）/YouTube