Introduction & Objective: Self-medication is one of the most health-social problem specially is population women for locating sensitive period for example pregnancy and milk give. The purpose of this study was to assess prevalence self medication and some factors effected in woman’s in Arak city.

Materials & Methods: Through a descriptive-analytical study 300 women referring health centers Arak city random selected and then interviewed through a questionnaire.

Results: Result indicated that %54 of all women committed self medication. The most common disease for which they were used were respiratory, Anemia, Alimentary and Psychiatric complications respectively. The most common factors underling self drug consumption were negligence of the disease (%69), and inability to afford the visit fees of the physicians (%63), don’t accesses insurance (%55) and before experience of disease (%53). The most prevalent form of drug were antibiotics (%68), table common cold (%64) and table iron (%57). Administrated drug consumption was more prevalent among 25 to 35 years old women and less prevalent below 20 years. It was also more prevalent among government employees. It was also very common among people having university degree and non medical insured women.

Conclusion: Since drug production demand high expenses and self administration may induce harmful side-effects specially in women social locating in sensitive period pregnancy and milk give a reform in the cultural and don’t use self medication in women recommended..