Beginning from 1989, the Taiwanese government formally allows foreign workers to work legally in Taiwan. Since then, the number of foreign workers has increased rapidly. In order to prevent the transmission of infectious disease brought by these foreigners to Taiwan and hence causing a defective disease control scheme, strict regulations about health checkups for their entry are mandatory. In this article, we discuss the management of abnormal findings of regular foreigners’ health checkups. The mandatory health checkup items include syphilis, active pulmonary tuberculosis, stool parasite ova, antibody for measles and rubella, leprosy, etc. Human immunodeficiency virus (HIV) was exempted from the mandatory health checkup items since February 6, 2015. In this article, we will discuss how to make a definite diagnosis of these diseases, ablation of employment when diagnosis is confirmed, subsequent treatment, and recheck regulations. We hope the readers will have a more comprehensive understanding of regular foreigners’ health checkups.