What STDs Cause Erectile Dysfunction include sexually transmitted infections(STIs) mainly Chlamydia Infections and Gonorrhoea Infections. STDs like Chlamydia, Gonorrhea, HIV, and Viral Hepatitis can cause erectile dysfunction (ED) by leading to inflammation of the prostate (prostatitis) or other reproductive organs, disrupting blood flow needed for erections; treatment involves targeted antibiotics for bacterial infections or antiviral drugs for viral ones, plus managing the underlying STI to resolve ED, emphasizing regular testing and safe sex for prevention