Choose the right one among the statements given below.

Options

A. IUDs are generally inserted by the user herself.
B. IUDs increases phagocytosis reaction in the uterus.
C. IUDs suppress gametogenesis.
D. IUDs once inserted need not be replaced.

Explanation

To solve the question of choosing the correct statement regarding IUDs (Intrauterine Devices), we will analyze each statement provided.

### Step-by-Step Solution:

1. **Understand IUDs**:
- IUDs are intrauterine devices used as a method of contraception. They are inserted into the female reproductive tract to prevent pregnancy.

2. **Evaluate the Statements**:
- **Statement 1**: "IUDs are generally inserted by the user herself."
- This statement is **false**. IUDs must be inserted by a qualified healthcare professional, such as a doctor or a nurse.

- **Statement 2**: "IUDs increase phagocytosis reaction in the uterus."
- This statement is **true**. IUDs create an environment in the uterus that is unfavorable for implantation, which can lead to an increase in phagocytosis (the process by which cells engulf and digest foreign particles) in the uterine lining.

- **Statement 3**: "IUDs suppress gametogenesis."
- This statement is **false**. IUDs do not affect gametogenesis, which is the process of forming gametes (sperm and eggs). They primarily work by preventing fertilization and implantation.

- **Statement 4**: "IUDs once inserted need not to be replaced."
- This statement is **false**. IUDs have a specific duration of effectiveness (ranging from 3 to 10 years depending on the type) and need to be replaced after that period.

3. **Conclusion**:
- The only correct statement among the options is **Statement 2**: "IUDs increase phagocytosis reaction in the uterus."

### Final Answer:
The correct statement is: **IUDs increase phagocytosis reaction in the uterus.**

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