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Japanese Online Marketplace Begs People to Stop Selling Ultrasound Photos

Some people will tell you that no one wants to see pictures of your kids, but they’ve apparently never been on the Japanese marketplace app Mercari. According to SoraNews24, there was a surprisingly robust market for ultrasound photos on the e-commerce platform, which resulted in Mercari ultimately banning the sale of said images. Ultrasound images have landed on the list of “inappropriate items” that Mercari maintains, which are restricted from being sold on the platform. The ban will go into

Ultrasound toothbrush promises painless checks for hidden gum problems

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: The toothbrush-shaped ultrasound transducer (left image) features a small head size (right image), allowing easy access to premolars and molars in the back of the mouth. Credit: Adapted from ACS Sensors 2025, DOI: 10.1021/acssensors.5c00521 When visiting the dentist, you might remember being poked and prodded by a t