Young mother Rachel Blease shares stark warning about new TikTok trend sweeping up teenage girls [Video]

Rachel Blease knows all too well about the dangers of sun.

The new mother recently had to undergo topical chemotherapy after developing a large cancer on her forehead — and she blames her own teenage years spent in the sun for the health alarm.

WATCH THE VIDEO ABOVE: New TikTok trend putting teens at risk.

Now Blease, a TikTok star herself, has noticed a new trend on the social media apps, where young women flaunt their “burn lines” or tan lines from sun burn their skin.

The hashtag #sunburnttanlines has amassed over 200 million views, indicating the popularity of the trend.

Social media users have also been using apps to check the UV scale for the day to ensure it was at its maximum before lying out in the sun, the ABC reported at the weekend.

“Unfortunately, I wasn’t surprised,” Blease told Sunrise on Monday.

“Social media often sets unhealthy beauty standards, particularly for young people, so that’s why I wanted to get …