If ringworm isn’t treated, not only will it stay around longer, but it can also spread to other areas of the body, and even scar the body. Additionally, there’s a greater risk of spreading the infection to other people. For untreated ringworm affecting the nails, nail deformities can occur. And for ringworm on the scalp that isn’t treated, there’s a greater risk of hair loss. This hair loss can be permanent. For so many reasons, it’s important to have ringworm professionally and properly treated.