There is an ongoing shortage and high demand for basic and specialized nurses in health care sectors in Sweden. The sick leave among healthcare workers has been remarkably increasing since 2012. Number of sick leaves has been increased among health care workers including midwives and specialized nurses regardless to their level of education. Aim of the study is to learn more about competence, competence growth and how it has impact on nurse health at their working place.Qualitative semi-structured interview method is used in this study and snowball sampling method is used to select the study participants. Interview data of all participants are analyzed using thematize analysis method. Eight nurses took part in this study and seven of them are working in hospital and one participant is working in an elderly care home. Almost all of the participations reported that competence is one of the key requirements for health care workers. The participants reported that the competence and the competence growth in working place are associated with professional experience, resources, peer support, cooperation, personal characteristics, attitude of managers and colleagues towards skills development, work environment, training towards knowledge updating and specialization and short terms courses. The study results show that most of participations have stable sense of coherence (KASAM) and the ability to associate the works with coherence is high. Five of eight participations scored high in of sense of coherence and it’s three components: comprehensibility, manageability and meaningfulness. One participant scored high in comprehensibility, manageability and whereas low in meaningfulness. Two participants scored high in comprehensibility and meaningfulness whereas low in manageability. The components of sense of coherence are often associated with good health in many studies. However, further researches to assess the relationship between the variables sense of coherence and nurses competent are required and it can be helpful for health promotional works among heath care workers.