According to experts, an employee cannot be on vacation and on sick leave at the same time. If a sick leave is issued during vacation, the employee should notify the employer as soon as possible and clearly express the desire to interrupt the vacation due to illness. However, a sick leave itself does not automatically interrupt the vacation. For this, the employee must inform the employer that they cannot use their vacation as intended due to illness and express the desire to interrupt it. The interrupted vacation days do not disappear. After the sick leave ends, the employee can either immediately use the remaining vacation days or arrange with the employer to take them at another time. For example, if an employee falls ill on the third day of a two-week vacation, they should see a doctor, open a sick leave if necessary, and notify the employer of their desire to interrupt the vacation. In this case, the vacation is suspended during the illness, and the unused days are preserved.