What is the body temperature before menstruation?

Women who are menstruating need to pay attention to their various indicators, because they can effectively reflect their health status. Generally speaking, the body temperature before menstruation is slightly lower than normal body temperature, but the difference is not big. The body temperature will gradually rise during ovulation, but it will remain the same overall, which means that there will not be a significant change. Female friends should have a certain understanding of the relevant knowledge.

1. Body temperature before menstruation

The basal body temperature of menstruation with ovulation is biphasic, that is, the body temperature is low in the first half of the menstruation and high in the second half. The body temperature before ovulation is generally 36.2 degrees - 36.5 degrees. The body temperature after ovulation increases by 0.3 degrees - 0.5 degrees compared with before ovulation, that is, about 36.8 degrees. For mature women, their basal body temperature is low from the end of menstruation to the beginning of ovulation. It drops to the lowest point again at the beginning of ovulation, but only for one day. From then on until the beginning of menstruation, the body temperature continues to rise to about 36 or 37 degrees. It is generally around 36 or 37 degrees during menstruation.

2. Normal body temperature

When a person's body temperature is normal, the oral (sublingual) temperature is 36.2-37.3 degrees. The axillary temperature is 36.0--37.0 degrees. The rectal temperature (rectal temperature) is 36.5-37.5 degrees.

During a day and night, the normal body temperature is lowest during sleep in the early morning, rising rapidly from 7-9 am, then rising slowly to reach the highest value between 17-19 pm, then decreasing to reach the lowest stable value between 23-24 pm. The difference between the highest and lowest values ​​is usually within 1 degree.

In general, women's body temperature is slightly higher than that of men of the same age. Women's body temperature is higher before menstruation, and drops by about 0.2-0.3 degrees during menstruation. When ovulation occurs, the body temperature usually drops another 0.2 degrees, and then rises suddenly. During a woman's pregnancy (usually 3-4 weeks), her body temperature may remain slightly elevated.

A normal person's body temperature fluctuates to a certain extent every day, and the fluctuation of adult women's body temperature is also related to the menstrual cycle. During the menstrual cycle, women's basal body temperature is often lower before ovulation. Normally, the body temperature before getting up in the morning (i.e. basal body temperature) is below 37 degrees, about 36.4-36.6 degrees. After ovulation, the temperature rises by an average of about 0.5 degrees and remains there until the onset of menstruation when it starts to drop.

If the menstrual cycle has always been regular, but this time the menstruation is not on time, and the basal body temperature remains above 37 degrees for more than three weeks, then after excluding other fever conditions, early pregnancy can be considered.