It is a cool idea but has a few issues to iron out. For example, false negatives and lack of privacy with STD results. You also have to consider the awkward moment when the condom tests positive just before sex.
Some people had this concept a few years ago. However, it is yet to hit the market as the science is quite complicated; you would have to place STD antibodies in the condom for the test to work. Check out this CNN article here on the idea. https://edition.cnn.com/2015/06/24/health/condoms-change-color/index.html
Condom that detects STIs thought up by teens - CNN
It is a cool idea but has a few issues to iron out. For example, false negatives and lack of privacy with STD results. You also have to consider the awkward moment when the condom tests positive just before sex.
Some people had this concept a few years ago. However, it is yet to hit the market as the science is quite complicated; you would have to place STD antibodies in the condom for the test to work. Check out this CNN article here on the idea. https://edition.cnn.com/2015/06/24/health/condoms-change-color/index.html
Condoms are not 100% in preventing various infections. Having one that detects STDs is thus an awesome idea.