Which of the following contraceptive method has high rate of failure ?

Options

A. Oral contraceptive pills
B. Implants
C. Barrier method
D. Periodic abstinence

Answer

To determine which contraceptive method has the highest rate of failure, we need to analyze the options provided:

1. **Oral Contraceptive Pills**: These are hormonal pills taken daily to prevent ovulation. When taken correctly, they have a low failure rate, typically around 1-3%.

2. **Implants**: These are small rods inserted under the skin that release hormones to prevent ovulation. They are highly effective with a failure rate of less than 1%.

3. **Barrier Method**: This includes condoms and diaphragms that physically block sperm from reaching the egg. Their failure rate can vary but is generally around 10-15% with typical use.

4. **Periodic Abstinence**: This is a natural method where couples avoid intercourse during the fertile window of the menstrual cycle. The failure rate for this method is higher because it relies on accurately predicting ovulation, which can be difficult. If couples miscalculate the fertile days, it can lead to unintended pregnancies.

After analyzing these methods, we can conclude that:

- The **Periodic Abstinence** method has the highest rate of failure due to the unpredictability of ovulation and the reliance on self-control during the fertile period.

**Final Answer**: D. Periodic Abstinence