List one drawback of surgical methods of birth control.

Explanation

### Step-by-Step Solution

1. **Understanding Surgical Methods of Birth Control**: The surgical methods of birth control include tubectomy for females and vasectomy for males. These procedures involve surgical alteration of the reproductive system to prevent pregnancy.

2. **Tubectomy Explained**: In females, tubectomy involves cutting and tying the fallopian tubes. This prevents the egg from traveling from the ovaries to the uterus, thereby preventing fertilization.

3. **Vasectomy Explained**: In males, vasectomy involves cutting and ligating the vas deferens, which is the tube that carries sperm from the testes to the urethra. This prevents sperm from being included in the ejaculate.

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