20-year-old Siobhan-Marie O'Connor became the first British woman to win an Olympic medal in the 200m individual medley, missing out on a gold medal by just 0.3 seconds.
Siobhan-Marie was diagnosed with Ulcerative Colitis after competing at the London 2012 Olympics, and has shared her experiences of living with Inflammatory Bowel Disease:
Siobhan-Marie isn't the only swimmer overcoming the challenges of Inflammatory Bowel Disease at the Rio Olympics this year. US athlete Kathleen Baker also won a silver medal, completing the 100m backstroke in 58.75 seconds.
Four weeks prior to going to Rio, Kathleen went public about living with Crohn’s Disease:
Crohn's Disease and Ulcerative Colitis are the two main forms of Inflammatory Bowel Disease - chronic conditions which currently have no cure.
Symptoms can include diarrhoea, weight loss, severe pain and extreme fatigue making it difficult for many of those diagnosed to practice sport, let alone compete at a competitive level.
Siobhan-Marie and Kathleen are true inspirations to everyone affected by Inflammatory Bowel Disease and we're grateful to them for sharing their stories.
If you have been inspired by Siobhan-Marie and Kathleen and want to take on a swimming challenge, there are still places available for Swim Serpentine - an exciting new event from the organisers of the London Marathon taking place this September.