Which of the following is a sexually transmitted disease but is not a reproductive tract infections ?

Options

A. AIDS
B. Syphilis
C. Hepatitis - B
D. Genital herpes

Answer

To solve the question "Which of the following is a sexually transmitted disease but is not a reproductive tract infection?" we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding the Question**: We need to identify a sexually transmitted disease (STD) that does not primarily affect the reproductive tract.

2. **Analyzing the Options**:
- **Option A: AIDS**
- AIDS (Acquired Immunodeficiency Syndrome) is caused by the HIV virus. It affects the immune system and can lead to various infections throughout the body, including the reproductive system. Therefore, it is not the correct answer.

- **Option B: Syphilis**
- Syphilis is a bacterial infection that is transmitted through sexual contact. It primarily causes sores and lesions in the genital area. Thus, it is also a reproductive tract infection and not the correct answer.

- **Option C: Hepatitis B**
- Hepatitis B is a viral infection that primarily affects the liver. While it can be transmitted sexually, its main impact is on the liver, not the reproductive tract. Therefore, this is a strong candidate for the correct answer.

- **Option D: Genital Herpes**
- Genital herpes is caused by the herpes simplex virus and leads to painful blisters in the genital area. This means it is also a reproductive tract infection, making it an incorrect choice.

3. **Conclusion**: After evaluating all the options, the only sexually transmitted disease that is not a reproductive tract infection is **Hepatitis B**.

### Final Answer:
**C. Hepatitis B**