High temperature 18 days before menstruation, may be normal menstruation, gynecological inflammation, ectopic pregnancy and other reasons.
1. Normal menstruation: regular menstruation of women ovulation occurs in the next menstrual period about 14 days before the onset of menstruation, at this time in the role of progesterone, women’s body temperature will rise about 0.3 ~ 0.5 ℃ in the high temperature phase, until the onset of menstruation. Due to individual differences in the menstrual cycle, 7 days ahead or behind is normal, so the high temperature 18 days after the onset of menstruation may be a normal menstrual performance.
2. Gynecological inflammation: Since the female reproductive tract is connected to the outside world, bacteria can easily go upward to cause gynecological inflammation, which can lead to fever, abdominal pain, abnormal leukorrhea, and this can also lead to prolonged high temperature phase of the menstrual cycle, which is manifested as a high temperature of 18 days before the onset of menstruation.
3. Ectopic pregnancy: when the fertilized egg in the uterine cavity outside the bed, the mother’s hormone level changes can lead to a relative increase in body temperature, in the hormone level of continuous action, the endometrium can be thickened with irregular shedding, vaginal bleeding, women mistakenly think that the menstrual period, then there can be a high temperature 18 days before menstruation performance.
High temperature 18 days before menstruation can also be seen in other causes, it is recommended that the patient timely medical treatment, improve the relevant examination, under the guidance of the doctor to clarify the cause of the disease, targeted treatment, to avoid delaying the condition.