Pain is an unpleasant and complicated experience on which affect the physiological, psychological and sociocultural factors. In the physiological sense pain occurs as a result of the activation of nociceptors that are activated when impairment and stimulation tissue, while the psychological impact of observed emotions, expectations, attention, personality and other psychological factors on the pain. There is more than one kind of pain that can be split up into specific categories. The pain according to the etiology share in the physical and psychogenic, according to the duration of the acute and chronic, and according to the localization of the visceral and the peripheral. These three categories are a basic division. Physical pain represents an injury of tissue or presence of a pathological process, while the psychogenic caused emotional states and for it is similar to physical pain. Acute arises suddenly, it is well localized and passing for a short period of time, and the chronic is always present and is resistant to therapy. The theory of pain throughout history have tried to explain the experience of pain, among which the most stressed the theory of Ronald Melzack and Patrick Wall, gate control theory of pain. Unlike the previous theory, it also includes the role of the central nervous system, especially the mental processes in the making of painful experiences. According to this theory the posterior horns of the spinal cord act as a gateway that can reduce or increase the passage of nerve impulses that go from the periphery to the central nervous system. Control theory of unlike other theory explains the individual differences in the experience of pain. Even though the represented a big step forward in relation to the other, this theory failed to explain the phantom pain. Sociodemographic and cultural factors also affect the experience of pain. From the socio – demographic factors first thoughts is age-related and sexual differences. In terms of age can not say with certainty that the painful sensations increase with old age, but can certainly say that new pains come with age. At gender differences, however, can be said that women are the ones who are more sensitive to pain and more frequently informed about her presence. One of the reasons is that which is safe and men already since childhood learns that it's not proper to show the pain in a distinct way. With the same, ethnicity manifest some of the differences so that through some observed survey that the African-Americans show greater sensitivity to experimental pain compared to people of Euro-American descent. The same, and in a study of acute and chronic pain it was found that the African-Americans at answering more accompanying consequences such as depression, sleep disorders and signs of strong stress. Other factors that influence sociodemographic are religion, socioeconomic status, and even the weather. In the cultural sense, have been spotted large differences in submitting and tolerance to pain. So some cultures encourage the expression of pain, especially in the southern Mediterranean and the Middle East, while in some parts of India are conducted very pain rituals where an elected member inthe later part of the rites freely floating hanging on only on hooks, which are stuck into the back. In the ceremony with at no point can’t be concluded that a person suffers any kind of pain already looks like he's in ecstasy or trance. In our culture is the most notable birth pain, where from an early age the girls freaked out stories about strong pain and complications during childbirth. Such expectations lead to the appearance of intense fear before the birth, and the fear to increase muscle tension which finally and results in increased pain.