This paper discusses one type of insurance provided by Jordanian Social Security Law for the protection and compensation of workers during a work related injury through the payment of daily allowances instead of lost wages during the period of treatment. In this regard, the paper highlights the following concepts: occupational illness, work injury, medical care, daily allowances (wages) and the outstanding problems of work injuries coverage with particular focus on the cases where an injured worker shall not be entitled to such allowances as well as the cases where the worker shall not lose his right such as death or disability. All of the above issues are discussed in light of the Jordanian Social Security Law No. (1) of 2014 and its attached insurance regulations. The paper concludes with a set of mathematical equations to calculate a worker's rights under the medical care insurance and daily wages in case of work injuries.