Uploaded August 2026 | Updated September 2026, 3 weeks ago

---

Subscribe to TLC UK for more great clips: bit.ly/3WstgiZ

Mark, a father living with hands ten times their normal size, visits a specialist to receive a life-changing diagnosis about his rare medical condition. #MostExtremeHumans #TLC #tlcuk

🇬🇧 Catch full episodes of your favourite TLC shows on discovery+: bit.ly/41DFZTB

From Season 1 Episode 1

Follow TLC UK on Facebook: facebook.com/tlcuktv

Watch TLC on Freeview 12, SkyQ and Sky+ 133, Sky Glass & Stream 139, Sky Scotland 134, Sky ROI 133, Sky Glass & Stream ROI 135, Virgin Media 113, Virgin Media Scotland 128.