Cardi B has been to the operating room many times to tweak her body to her liking, and as a plastic surgery expert, she has some advice to give. 

The 30-year-old rapper recently shared a live video on her Instagram account where she warned her 140 million followers about doing their research before undergoing cosmetic interventions.

"In August I had surgery and had 95% of my biopolymers removed.... They're injections in my butt. It was a really crazy process," the singer explained.

"When I was 20, I started working in an urban strip club. And in urban strip clubs, you had to have a big butt," explained the singer, who has never hidden her past. "I felt insecure. It took me back to high school. So I had a butt operation."

A decade later, the rapper has decided to correct that mistake and has spoken about it openly so no one else will make it: "All I'm going to say is if you're young, if you're 19, 20, 21, and you look too skinny, and you're like 'OMG I don't have enough fat to put on my butt'; don't resort to injections."

Gluteoplasties—the augmentation of buttock volume through fat infiltration—are becoming increasingly common around the world. A report published in 2017 in the Aesthetic Surgery Journal explained that these procedures have a relatively low, but higher risk than other cosmetic operations. Out of nearly 199,000 gluteal grafting procedures, 32 patients died from fat embolism.

In the recent book “Butts: A Backstory,” journalist Heather Radke explains how contemporary culture has become obsessed with this part of a woman's anatomy. Radke points to 2014 as the high point of mainstream media obsession, thanks to phenomena such as belfies (sort of like butt selfies), twerking, and the fascination with the likes of Nicki Minaj, the Kardashian clan or Cardi B herself.