Comedian Celeste Barber has blasted fitness influencer Tammy Hembrow after sharing images of her fit and toned stomach to Instagram just 12 days after giving birth.

Celeste said the 28-year-old’s post was “dangerous” and urged women to not compare themselves to Tammy.

Captioning an image of Tammy posing in front of a mirror showing off her abs, Celeste wrote: “No disprespect, well done on your success but this is dangerous.”

She continued: “Women should NEVER feel as though they need to put on active wear and show off their bodies, to prove a point ESPECIALLY 12 days after having a baby.”

Tammy welcomed daughter Posy with her Ironman fiancé Matt Poole on June 19. Little Posy, joined siblings 6yo Wolf and 5yo Saskia, who the fitness influencer shares with her ex-fiance Reece Hawkins.

Celeste Barber has slammed Tammy Hembrow for showing off her fit body 12 days after giving birth.

Celeste, who has two young sons with husband Api Robin, then reflected on her own postpartum experience.

“Jeez I was shi**ing in a bag and screaming into a pillow after having my babies. How we look is irrelevant.”

The comedian then offered this advice to her female followers: “Be kind to yourselves, moisturise your nipples and unfollow accounts that make you feel like sh*t!”

“Women should NEVER feel as though they need to put on active wear and show off their bodies, to prove a point ESPECIALLY 12 days after having a baby.”

Tammy credits her toned postpartum body to keeping ‘as active as possible’ before and during her pregnancy by following her programs on her own fitness app.

“I honestly feel like my core was at its best in my whole life just before I fell pregnant with [daughter] Posy so I’m excited to see what I can do this time round after baby number 3!” Tammy wrote to her Instagram followers in a post on June 30.

Tammy Hembrow welcomed her third child, Posy on June 19.

Tammy asked her 15.2 million Instagram followers to not compare themselves to her, saying everybody’s experience after giving birth is different.

“Please DO NOT be hard on yourself or compare yourself to others. We all have different genes, different lifestyles, different circumstances etc,” she wrote.

“That being said I work and have worked extremely hard and want nothing more than to motivate and inspire you!”