Final answer:
Syphilis is the STD with symptoms that include genital sores, fever, rash, and hair loss. It is a serious condition that can lead to death if left untreated.
Step-by-step explanation:
The sexually transmitted disease (STD) that has symptoms of sores on genitals, fever, rash, and hair loss is syphilis. This bacterial infection is caused by Treponema pallidum and progresses through multiple stages. In the primary stage, a painless sore known as a chancre appears on the genitals.
The secondary stage can present with a rash, fever, and hair loss. If left untreated, syphilis can progress to the tertiary stage, causing severe damage to the heart, brain, and other organs, and can be fatal.