Kylie Jenner has undergone stem cell therapy to ease her back pain.

The 28-year-old reality star- who has Stormi, seven, and Aire, three, with ex-partner Travis Scott - has been in constant discomfort since her last pregnancy but is feeling much better after following her half-sister Kim Kardashian in having the treatment, which uses stem cells to help repair and replace damaged tissues, organs and cells.

Kylie shared a series of posts on her Instagram Story about the process, which began with a photo of herself in a hospital bed.

She wrote: "I've been dealing with bad chronic back pain for almost 3 years after my last pregnancy, and nothing I tried seemed to help.

"Hearing how much relief Kim got gave me the confidence to look into stem cell therapy: I went to @dr.akhan and his team at @eterna.health, and I'm honestly so grateful for the opportunity and resources.

"Everyone's body is different, but this has been a huge step in my healing: Definitely do your research.. talk to your doctor and medical professionals, but l just wanted to share in case this helps anyone.(sic)"

The Kylie Cosmetics founder - who is dating Timothee Chalamet - could be seen in other pictures posing with her doctor and with bandages on her lower back.

Kylie recently admitted she found things difficult when she first had her daughter because she was the first of her friends to become a parent.

Speaking on half-sister Khloe Kardashian's podcast Khloe in Wonder Land, she said: "I think I have a really good balance.

"I think that I definitely still feel like myself. It was really hard for me having kids so young and you're just...the emotions, and the postpartum."

Khloe noted: "And probably being the only one in your circle [to have kids]."

Kylie replied: "The only one. Yris [Palmer]. Yris and I became a lot closer. She's a little bit older than me, we had kids together also.

"But I think I did a pretty good job. I think it just takes time.

"It took me like a year, probably, after -- both times -- to really feel like myself again."