Curiosity Stream
Sign In

Operation Ouch! (Season 7)

15 episodes 75%4KCC

Twin doctors turn the human body into a thrilling, real-world investigation.

Join identical twin doctors Chris and Xand van Tulleken as they reveal the human body in vivid detail through real patients and real situations. Season 7 blends hospital cases, hands-on demonstrations, and clear explanations that make complex biology instantly engaging. Sign up to see how every episode turns everyday anatomy into something surprising, smart, and memorable.

Episode guide

15 episodes
1
1What Makes You, YOU?
Dr. Chris and Dr. Xand show how genes make you who you are, and Dr. Ronx joins the team. They share a new body trick - a hole in your hand.
28 min
2
2Why do Bones Break?
The doctors balance a van on four leg bones to show how super strong your skeleton is. They discover a new body trick with fingers.
28 min
3
3What makes you go yuck?
The doctors go to the lab to find out what makes us squeamish. Then they tackle medical mysteries on the wards in Ouch & About.
28 min
4
4Don’t Pick Your Scabs!
Dr. Xand shows how your blood clots, and Dr. Ronx finds out how echolocation is helping people with sight problems.
28 min
5
5Why Your Poo is Brown?
The doctors do an experiment to see what makes poo brown and Dr. Xand discovers the incredible breathing skills needed to free dive.
28 min
6
6How to Grow a Brain
The Doctors reveal the turbinates – the bones in your nose that help you breathe clearly – and find out how scientists are growing a brain.
28 min
7
7What Thumbs Are For
The doctors do a thumb challenge and discover how drones are helping emergency rescue crews reach patients really quickly.
28 min
8
8How your reflexes can save you
Dr. Xand invents a crazy game show in the lab to test Dr. Chris’s reflexes and they meet Beatboxer D-Low. Dr Ronx goes on emergency calls.
28 min
9
9Why is Sweat Salty
Dr. Chris and Dr. Xand study salt and sweat in the lab. Dr Ronx finds out how gene therapy is helping treat patients with immune disorders.
28 min
10
10Get Your Body Moving!
Dr. Chris and Dr. Xand make smoothies in the lab to show the incredible barrier that keeps your brain safe. Then they make a music video.
28 min
11
11Why are Some People Faster Than Others?
The doctors investigate the vestibular system – the part of the body that keeps you balanced. Then they meet a super-fast hockey star.
28 min
12
12Is My Body Electric?
Dr. Chris and Dr. Xand reveal how your brain controls your body in today’s lab experiment. Dr Ronx demonstrates some pet first aid.
28 min
13
13The Body Roadtrip! (Best of)
The doctors take a journey around the human body – looking at it from head to toe.
28 min
14
14The Ouch! Awards (Special)
In this special episode, Dr Chris and Dr Xand reveal the winners of the first ever Ouch Awards, celebrating their bravery.
28 min
15
15The Life Fix (Special)
With help from some YouTubers, the doctors present this special episode packed with tips to sort out the problems that pop up in daily life.
30 min
Good to know

Frequently asked questions

Thousands of the world's best documentaries and factual programming — nature, history, science, technology, and biography — including exclusive Curiosity Originals like Operation Ouch! (Season 7). Stream it all ad-free, anytime.

Plans are billed annually — every plan streams in 4K. The Smart Bundle adds four partner services. There are no contracts — cancel anytime.

Watch on the web, iOS and Android, Roku, Apple TV, Amazon Fire TV, Chromecast, Android TV, and most smart TVs. Start on one device and pick up right where you left off on another.

Yes. The library is full of family-friendly nature and science programming, and the Smart Bundle includes Kidstream — carefully chosen, ad-free shows kids will love and parents can trust.

Absolutely. There are no contracts and no cancellation fees — manage or cancel your plan anytime from your account settings.

Curiosity Stream is our streaming service — thousands of documentaries and originals. The Smart Bundle is Curiosity Stream plus four other independent streaming services (Tastemade, Kidstream, Curiosity University, and SOMM TV) on a single subscription.

Yes. Start on any plan and move up to the Smart Bundle whenever you like — the change takes effect right away, and your billing is simply prorated from your account settings.

Got your answer? Pick a plan and start streaming.Start streaming
Available now

Start watching Operation Ouch! (Season 7) today

Stream thousands of award-winning documentaries. Cancel anytime.

Start streaming