There isn’t a verified count of how many women did the Heart Butt Challenge. The public posts I found only say it went viral, with many participants, and that “most” participants were women rather than giving a reliable total.

What is known

  • The trend spread widely in early April 2026 across X and Instagram.
  • One post tied to the trend reportedly drew 122,000 likes and 8 million views, and another claim said the trend had 33k+ posts in 6 hours.
  • Sources describe the participants as mostly women, but none provide a trustworthy headcount.

Best answer

So the most accurate answer is: nobody publicly verified an exact number of women who did it. What exists are social-media estimates and trend metrics, not a real participant census.

Context

A rough way to think about it is that the challenge was measured in posts, views, and shares , not in a count of unique women who took part. That means any exact number you see online is likely speculation rather than confirmed data.