It comes weeks after her team mate and five-time Paralympic champion Ellie Simmonds ended her career at 26.

At Tokyo 2020, Robinson spoke from the heart during an interview where she opened up about an ongoing hip problem that affected her preparations for the Games.

She finished fifth in the women's S6 50 metres butterfly final, being unable to replicate her form from Rio 2016.

Five years ago, she won the gold medal in the event, as well as bronze in the women's S6 100m freestyle.

"Where do I begin? How about I just say swimming, you've served me well," said Robinson in a statement.

"Although your door may be closing, it will never be locked. 

"I will forever be peering through to admire the beauty behind you.

"We've not always got on well. 

"We've clashed countless times - but swimming, I can happily extend a hand and say 'thank you, it was all part of your plan in the end, I should have never doubted you'."

She said she was in "agony this whole year" after saying she was proud of her result at Tokyo 2020, hinting at the time at retirement.

British Para-swimming national performance director Chris Furber wished Robinson well in her retirement.

"It has been a pleasure to play a part in Ellie's career over the past six years and watch on at all she has achieved, beginning with a British record-setting display at the National Paralympic Day event in London back in 2015.

"There is no doubt that, through her performances at two Paralympic Games and other major international competition, she has helped to promote Para-swimming and also raise the profile of Para-sport more generally.

"We wish her every success for the future and look forward to seeing what the next chapter holds for Ellie Robinson."