Which one is not included in "barrier methods" of birth control?

Options

A. Lippes loop
B. Diaphragms
C. Cervical caps
D. Vaults

Answer

To solve the question "Which one is not included in 'barrier methods' of birth control?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand Barrier Methods**: Barrier methods of birth control are designed to prevent sperm from reaching the egg. They create a physical barrier during sexual intercourse.

2. **Identify Common Barrier Methods**: Some common examples of barrier methods include:
- Condoms
- Diaphragms
- Cervical caps
- Contraceptive sponges

3. **Examine the Options**: The question likely provides multiple options, including some that are barrier methods and one that is not.

4. **Analyze Each Option**:
- **Option 1: Lipis Loop (Intrauterine Device)**: This is a type of IUD (Intrauterine Device) which is inserted into the uterus. It does not create a barrier during intercourse; instead, it prevents implantation of a fertilized egg. Therefore, it is **not** a barrier method.
- **Option 2: Diaphragms**: These are barrier methods as they cover the cervix and prevent sperm from entering the uterus.
- **Option 3: Cervical Caps**: Similar to diaphragms, these also act as a barrier to sperm.
- **Option 4: Condoms**: These are well-known barrier methods that prevent sperm from entering the vagina.

5. **Conclusion**: Since the Lipis Loop is an intrauterine device and does not function as a barrier, it is the correct answer to the question.

### Final Answer:
The option that is not included in "barrier methods" of birth control is **Option 1: Lipis Loop**.

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