Every month in the middle of a cycle I test strong nojushchie pains in the bottom of a stomach or belly...

[Natalia]

Every month in the middle of a cycle I test strong nojushchie pains in the bottom of a stomach or belly in current of several hours. As I have understood, it ovuljatsionnye pains. And here body height BT occurs or happens in 1 2 days after that. So when there is an ovulation? What occurs or happens during that moment when the stomach or belly hurts? When grows BT?
And more. I know, that BT what admissible start on time is measured in the morning approximately at a time, and. For example yesterday I have measured BT in 7 o'clock in the morning, and today in 8. It is admissible?

[The doctor]

Body height of basal temperature through 1 2 dnja-it is absolutely normal. The ovulation occurs or happens last day low temperature. During the moment of an ovulation occurs or happens mikro-a hemorrhage in a wall of a follicle and its or her break. The Small amount of the liquid containing in a follicle gives vent in an abdominal cavity. Cells of a wall of a former follicle start to develop or produce progesteron-" a hormone of pregnancy " - he promotes rise in temperature. BT it is possible to measure at various times, only do or make correction on time (approximately BT each hour raises or increases on 1 degree). Reveal dependence BT on time.

[Kamenetskij B.A.]

Almost daily I receive questions anyhow concerning or touching interpretings of data of basal (rectal) temperature. Below I would like to result or bring the small review of the literature, concerning or touching this research. Really, during decades this method was is unique accessible and the most used by the doctors who were deal with problems of fruitless marriage or spoilage. Not the secret, as now, despite of appreciable changes in diagnostics of endocrine disturbances, at availability of more modern and exact diagnostic opportunities, this method remains, strangely enough, dominating.
Basis of a method is the mediated influence of Progesteronum (the basic hormone of the second phase of a cycle) on thermoreceptors of a hypothalamus in this connection the basal temperature in the second phase of a menstrual cycle raises or increases. In 1888 And. Century Reprev has established or installed, that the body temperature before a menses raises or increases, and during monthly goes down. A.I.Rubel (1927) considered or counted, that the subfebrile condition at women can be an endocrine parentage and is in dependence from function of ovaries. In 1938 Rubinstein has described preovulatory depression of temperature which in its or his opinion, is caused estrogennym by influence. In 1950 Palmer eksperementalno has proved, that under influence of estrogens the rectal temperature decreases, and under influence of Progesteronum - raises or increases.
As if to itnterpretatsii these data and attempt to establish or install day of an ovulation by the majority of researchers it is recognized, that day of an ovulation coincides with day before the beginning of rise in temperature (. Item Majzel, 1965).
In domestic classical managements or manuals on gynecology of the last years it is described five basic types of temperature curves:
I type - rise in temperature in the second phase of a cycle not less than on 0, 4 With; there is a "preovulatory" and "premenstrual" temperature drop. Duration of rise in temperature of 12 14 days. Such curve is typical for a normal biphase menstrual cycle;
II type - is available weakly expressed rise of temperature (0, 2 0, 3) in the second phase. Such curve testifies about estrogen-progesteronovoj failures;
III type - temperature raises or increases shortly before a menses and there is no its or her "premenstrual" falling. The second phase is shorter than 10 days. Such curve is characteristic for a biphase menstrual cycle with a failure of the second phase;
IY type - a monotonous curve (there are no changes during all cycle). Such curve is marked or celebrated at anovulatory (the ovulation is absent) a cycle;
Y type - atipicheskaja (chaotic) temperature curve. Greater or big are marked or celebrated razmahi temperatures, does not keep within one of the above described types. Such type of a curve can be observed at expressed estrogennoj failures and as can depend on random factors (Century N.Kustarov, H.Pahk's Item, 1991).
Rising of basal temperature occurs or happens, as considers or counts series of authors (Moghissi K. S., Syner F. N., Evans T. N., 1972; Ross G. T., Cargille C. M., Lipsett M. B., Rayford P. L., Marshal J. R., Strott C. A., Rodbard D., 1970) when the level of Progesteronum in Serum of a blood exceeds 2, 5 4, 0 ng/ml (7, 6 12, 7 nmol/). However, the monophasic basal temperature has been revealed at of some patients with a normal level of Progesteronum in the second phase of a cycle (Johansson E. D. B., Larsson-Cohn U., Genizell G., 1970). Besides the monophasic basal temperature is noted, approximately, at 20 % of ovulatory cycles (Bauman J. E., 1981; Moghissi K. S., 1976). Simple ascertaining of biphase basal temperature does not prove also normal function of a yellow body (Bauman J. E., 1981). The basal temperature also cannot be applied to definition of time of offensive or approach of an ovulation as and at a luteinization neovulirovavshego a follicle the biphase basal temperature (Yoshimura Y., Tada S., Oda T., Nakamura Y., Maruyama K., Ishikawa F., Ebibara T., Hirota Y., 1989) is observed. Nevertheless duration ljuteinovoj phases according to data of basal temperature and low rate of rise of basal temperature after an ovulation are accepted by many authors (Isakova E., 1993, Downs K. A., Gibson M., 1983) as criteria of diagnostics of a syndrome of a luteinization neovulirujushchego a follicle. Series of factors, such as smoking, the intensive brainwork, the previous sexual certificate or act, non-observance of certain time of measurement of temperature can essentially change its or her parameters (Tachezy, 1959). Researches of last years evidently show, that correlation between changes of basal temperature and ovulatory changes in ovaries (confirmed by means of ultrasonic research) does not exceed 40 %.
This method can be used by women as the house test or dough at obviously known absence of a pathology of a menstrual cycle for planning pregnancy.
For definition of day of an ovulation by a method of a choice for today ultrasonic monitoring is. This method allows to receive the objective certificate on presence or absence of an ovulation.
Yours faithfully
To. M. n. B.Kamenetsky
In occasion of carrying out of procedure EKO you can address for the detailed information in the Center on bodies (812 3282251 or 3289822 (by the way at the link to the information received on this site, primary consultation will be free-of-charge)