One of the easiest ways to get the answer to the question, there is a pregnancy or not, is to conduct urine test. But a negative pregnancy test does not always mean absence of pregnancy. The reason for the delay menstruation can be a variety of pathological conditions of women, so after receipt of the test result is better to consult a doctor for examination.

What are the reasons for the delay menstruation

A woman who lives a regular sex life, especially when buying a test delay menstruation to exclude pregnancy. One of the first reasons, which leads to a lack of regular menstrual cycle The menstrual cycle - that occurs in different phases?   and the emergence of delay is pregnancy. But this is not the only reason. The woman received a negative test result, have to visit a gynecologist, if the next menstrual period has not occurred.

The reason for the lack of menstruation may be the following pathological conditions:

• the formation of tumor-like formations in the area of ​​the appendages;
• diseases of the female reproductive system inflammatory disorders;
• an imbalance of sex hormones that underlie the endocrine diseases (delayed menstruation with polycystic ovarian changes, with adrenogenital syndrome);
• the impact of environmental factors, such as a period of adjustment when you move to a different climate zone;
• the impact of a stressful situation.

In all these clinical situations, a pregnancy test is negative. Conducting objective bimanual examination, clinical and laboratory (including a study of the hormonal profile of women) and instrumental studies allows the physician in the diagnosis and choosing the right treatment tactics. In doubtful cases, the need to clarify the presence of pregnancy is recommended to determine the level of human chorionic gonadotropin by a blood test. This method is more sensitive and can reliably confirm the pregnancy, as well as a quantitative conclusion about the level of the hormone in the blood.

A negative test in the presence of pregnancy

In practice, medical practice faced with a situation where a woman received a negative test result, and the pregnancy she developed. First of all it may be due to the wrong choice of diagnostic test systems. If a woman has acquired the test, which would not be the same in their sensitivity to the concentration of the pregnancy hormone hCG in her body, it will be a negative result. For example, if the sensitivity of the test system is low (10 mIU / ml), and such term pregnancy when hCG concentration higher than the sensitivity of the test, the result is negative. Therefore, when choosing a test, should pay attention to the sensitivities.

A negative test result would be if it did not accurately made over time. If the test strip to hold urine is too small (less than one minute), the result of such a study would be misleading. The most optimal time period for the test is five to ten minutes. In each test, there are instructions, before the test so you need to be sure to familiarize yourself with it.

To avoid any doubt, if the test result is negative, the test should be done only with a delay. It is impossible to carry out research to the next menstrual period, even when there is not enough of the hormone HCG, it will lead to negative results. If the woman still did a test in this period, when the delay is necessary to repeat the study in a week. In the case of pregnancy will increase the hormone and then the test will be able to more accurately answer whether there is a pregnancy. Repeated negative pregnancy test Pregnancy tests - early diagnosis   and the absence of menstruation - a reason to visit a doctor to avoid gynecological diseases.

Marina Solovyov

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