Nurses have been identified in the top ten ranked occupations for work related musculoskeletal disorders, with incidence rates higher in long term care compared to hospitals. Of primary concern are back injuries and shoulder strains. Numerous studies have documented a high prevalence of back, knee, shoulder and other joint pain among health care workers. Lifting patient's awkward postures and forceful movements likely contribute to the risk of low back pain in nurses. In this context, we attempted to compare the body mechanics during selected nursing procedures among staff nurses with and without backpain and to associate the selected factors and body mechanics among staff nurses with and without backpain. It was conducted using a quantitative, nonexperimental approach using a descriptive design. Purposive sampling was used to select 40 staff nurses with and without back pain using an inclusion and exclusion criteria, a backpain screening sheet and data were collected using an demographic data sheet, backpain screening sheet, clinical data sheet and observational checklist. When baseline characteristics were compared both the groups; nurses with and without backpain were found to be comparable in terms of their educational status, type of footwear usage, working hours per day, height, mode of travel, number of children, nurse patient ratio, body mass index and weight except for age, working experience in years, duration and severity of back pain. There was statistically significant difference in body mechanics of nursing procedures among staff nurses with and without back pain, in occupied bed making (t=7.03,p 0.05) found that factors were not associated with body mechanics among staff nurses with and without back pain. The study concluded that nurses should be given knowledge and reinforcement about correct body mechanics in their work and motivation to practice it.