How to use Twig to pull drop down menu items for a front end form
You'd do something very similar:

&lt;select name="fields[fieldHandle]"&gt;

    {% for dropdownOption in currentUser.fieldHandle.options %}
        &lt;option value="{{ dropdownOption.value }}"{% if option.selected %} selected{% endif %}&gt;{{ dropdownOption.label }}&lt;/option&gt;
    {% endfor %}

&lt;/select&gt;