Shutterstock/Stas Malyarevsky
Tampons and sanitary pads that have been modified to change colour in the presence of some urinary tract infections (UTIs) could help to quickly diagnose such conditions in lower-income countries where access to healthcare is limited – though the current design turns pink, which may not be very useful.
UTIs are incredibly common: worldwide, . The standard way to diagnose a UTI is to , but these facilities are often less available in .
Now, and…



