Labor pain is one of the most severe pains which has ever evaluated and its fear is one of the reasons women wouldn’t go for natural delivery. Considering different factors which affect experiencing pain, this study aimed to explain women’s experiences of pain during childbirth.METHODS:This was a qualitative phenomenological study. The study population was composed of 14 women in 6 weeks post-partum period of natural delivery. The data were collected by interview. The data were analyzed by Colaizzi’s seven-stage method.RESULTS:After analyzing the interviews, four main categories were extracted: the nature of delivery pain, the related factors in labor pain, the results of labor pain, and the perception of caseworkers.CONCLUSIONS:Assessing the women’s experiences can be useful in giving better care. It helps understand the delivery pain phenomenon. Positive aspects of delivery pain must be strengthened and its negative aspects must be reduced as much as possible to create a suitable vision towards it.Keywords: Women’s experience, pain, delivery painUndoubtedly delivery is a painful experience for all of the women except a few of them. The labor pain results from some physiological-psychological causes. If the woman looks at the pain with a psychological view her feeling toward it would be changed.1Having an abnormal pregnancy, low knowledge and bitter experience of the previous pregnancies can increase the labor pain while a normal pregnancy, having self esteem, pleasure and relaxation can decrease it and hence make your delivery favorable and if the woman would be pleased and relaxed, without facing real pains, her pain tolerance threshold would be increased.2Pain is a phenomenon that hasn’t been understood and discovered completely yet and its clinical measurement could be really difficult. The individual experiences’ of the pain would be considered as a reliable source for its comprehension and only the individual can explain her experience. The pain is what was experienced by someone and it exits whenever she/he talks about it.3In a study which conducted on 288 Swedish women, 28% of them evaluated labor pain as a positive condition and 41% of them considered it as the worst experience that they have.1Fear of labor pain is one of the most important reasons that make women go for cesarean section. In a study on reasons for tendency to the cesarean section in Iran, fear of the labor pain was reported as 37.2%.4The pain tolerance is the individual’s endurance and the acceptance of the pain in a specified range. It may differ in different people and could be influenced by the individual’s physical, psychological and cultural conditions.3 Reaction to the pain is also different in each person. Culture, gender, religious beliefs, and age can affect one’s assumption of pain and their reaction to it. For instance in Korean culture it is really important for the women to be quiet during delivery so they will not make their family ashamed. But European Americans show a wide range of reactions toward pain.5 Historical documents show that some societies have accepted pain as a part of their life and considered it as a fundamental element for growth and spiritual promotion.6