# What causes kidney stones?

- Institution: TED
- Department: TED-Ed
- Speaker: Arash Shadman
- Year: 2017
- Level: For everyone
- Language: English
- Subjects: Medicine and health, Teaching and learning
- Source: [TED](https://www.ted.com/talks/arash_shadman_what_causes_kidney_stones)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

The biggest kidney stone on record weighed more than a kilogram and was 17 centimeters in diameter. The patient didn’t actually swallow a stone the size of a coconut; kidney stones form inside the body. So how do they grow in the first place? And why are they so painful to get out? Arash Shadman shares the science behind kidney stones. \[Directed by Biljana Labović, narrated by Addison Anderson, music by Cem Misirlioglu\].

## Lectures

1. [What causes kidney stones?](https://invisiblenetwork.ai/learn/ted/arash_shadman_what_causes_kidney_stones/8163e46f349c), 5 min (TED's player)