You can take sick leave under 45 months, but you need to bring the case and diagnosis certificate to the appraisal institution above the city for appraisal. Those who meet the retirement conditions may apply to the social security center for retirement with the appraisal report. Those who do not meet the requirements cannot apply for sick leave.
Sick leave is a rule that employees' sick leave pay has a medical period in China. The medical treatment period is calculated according to the working years of the unit. The first year is three months, and the medical treatment period is increased by one month for each full year.