Health, being an important contributor to the human capital of a country plays an important role in the economic growth and development of the country. Health of the workers is prone to different diseases like Hepatitis-C, Tuberculosis, Malaria, HIV/AIDS etc. which erodes their capacity to remain a productive worker. In Pakistan and especially in Khyber Pakhtunkhwa the HIV/AIDS virus is spreading with an acceleration however this problem has been given less importance. This study tries to point out the problems related to the patients’ labor productivity and the time taken back to workplace especially taking ‘stigma and discrimination’ into account along with other factors like marital status, existing family system and alike. Descriptive analysis and Cox regression analysis are used to investigate labor productivity of the patients and the time taken back to job market along with identifying the important determinants in the time to event analysis framework. Analysis show that labor productivity is greatly affected after being diagnosed. However, it is of importance that in the case of chronic terminal illness like HIV/AIDS, a considerable negative impact on labor productivity can be attributed to the immediate effects of psychological/emotional factors and social factors like stigma and discrimination. Nevertheless, factors like age, current physical and mental work ability and family system do affects the patients’ time taken back to work. It was observed that most of the infected patients were less educated hence there is a need for awareness campaigns through electronic and print media. Workers going abroad needs to be provided with proper counselling to reduce their vulnerability. Moreover, patients may also be provided with the services of counselors in the treatment centers who could encourage and guide the patients in their economic matters. Supervisor:- Dr. Iftikhar Ahmad