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Diagnostics

Cycle monitoring

Cycle monitoring for fertility

Cycle Monitoring serves several purposes. The doctor can, for example, discover information on the cause of a couple’s involuntary childlessness and work together with them to find a suitable treatment.

Should the couple want to conceive a child naturally, cycle monitoring will tell the doctor what the optimal window for conception would be – i.e. the days on which they should have sexual intercourse.

Cycle Monitoring can also be helpful for insemination with In-vitro Fertilisation (IVF) or Intracytoplasmic Sperm Injection (ICSI). This tells the doctor exactly when insemination can be done or eggs can be removed for assisted fertilisation. In this case, ovulation is usually triggered by hormone treatment. This makes for better planning and also increases the chances of a successful pregnancy.

Cycle Monitoring process


Cycle monitoring is part of the diagnostic procedure for involuntary childlessness. In particular, for women whose cycle is irregular, periodic tests using ultrasound and laboratory analysis make it possible to determine whether a follicle is growing or if there is a problem with egg maturation. Follicular growth is also monitored in assisted fertilisation.


First examination


The first examination is usually between the third and fifth day of the cycle. At the same time, the doctor checks the woman’s hormone levels. At this point, the blood levels of hormones that are responsible for or may interfere with egg maturation are of particular interest. This includes Follicle-Stimulating Hormone (FSH), Luteinizing Hormone (LH), thyroid hormones, the stress hormone prolactin and the so-called “male” hormones (androgens). It is also possible to estimate the egg reserves by measuring the Anti-Mullerian Hormone (AMH). In addition, the woman’s ovaries and womb are examined using ultrasound.




Second examination


The second examination is usually between the 10th and 12th day of the cycle, shortly before the expected ovulation. Once again, the doctor checks the woman’s hormone levels. An ultrasound examination reveals whether a follicle has actually matured, whether the endometrium has developed and its thickness, and whether the cervix is already open so that the sperm can easily pass through to the womb.




Third examination


In the third examination, about a week after ovulation, hormone levels are once again checked – in particular progesterone levels (yellow body hormone). Progesterone plays an important role in the implantation of the embryo in the endometrium, amongst other things.


Should the woman’s menstrual cycle be longer or very irregular, further examinations are conducted – mostly in the space of a few days. A cycle examination can also be done over several cycles, if necessary.


 

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