Most of the scientists believe that over production of estrogen can affect the normal function of the heart, which can cause some serious heart ailments. Normally, menstruation lasts from three to six days and follows a twenty-eight day cycle. However, if a women s menstruation lasts up to almost ten days and follows shorter menstrual cycle, it can be a sign of high estrogen level. Moreover, it is also an important component for the development and enhancement of the female secondary sex characteristics such as the breast and endometrioum. During the menopausal cycle of the women estrogen plays a very vital role. This is the necessity of having an appropriate level of Estrogen to prevent the unnecessary disorders that may take place inside a woman s body. Thus, if the level of this hormone reduces there is a tendency that a woman will suffer from various disorders. Estrogen cream helps the woman in maintaining a healthy hormone balance especially during the period of menopausal and even beyond. On the other hand, the maintenance of this cream is also quite difficult because if you use it beyond what the doctor prescribed, it can lead to some very serious risks. A large number of women stopped taking estrogen pills after they have heard the initial report of the National Institute of Health that showed the serious danger of the estrogen pills. However, there are still some women, which are continuously using the pill. Why is it? Most women still use estrogen pills perhaps: Have not heard anything about the life-threatening danger it could give. Estrogen may also increase a risk of blood clotting, which can damage the proper circulation in the arteries. Significant proof suggests that long-term use of estrogen can slowly increase the risk of breast cancer. In addition, researches have also shown that there is a greater risk of breast cancer among women who use both the estrogen and the progestin. Estrogen hormone helps in developing the breast of the women, thickening of the endometrial, affects the discharge of hormones from pituitary gland and changing the menstrual cycle. There are a total of six estrogenic substances in the women s body. However, there are only three top occurring estrogens in women namely: estrone, estradiol and estriol.