What is the primary cause of genital herpes?

The primary cause of genital herpes is Type 2 herpes simplex virus (HSV-2). This virus is specifically associated with infections in the genital area and is transmitted primarily through sexual contact. While Type 1 herpes simplex virus (HSV-1) can also cause genital lesions through oral-genital contact, it is more commonly known for causing oral herpes, which presents as cold sores.

Genital herpes is characterized by painful sores or blisters in the genital area and can also lead to systemic symptoms such as fever and swollen lymph nodes during an outbreak. Diagnosis typically involves clinical examination and may be confirmed with laboratory tests. Understanding the specific virus responsible for genital herpes is crucial for effective patient education, management, and prevention strategies.

Other conditions mentioned, such as Trichomoniasis, are sexually transmitted infections but are caused by different pathogens (a protozoan), and renal colic is related to kidney stones and does not pertain to sexually transmitted diseases. Therefore, the distinction of HSV-2 as the primary cause reflects its role in genital herpes specifically.