Pupil Symptom

Pupil Symptom: Mid-menstrual cycle indicator

The menstrual cycle is a natural and important process in women's lives. During the cycle, various physiological changes occur that signal the possibility of conception and maintenance of pregnancy. One such symptom, known as the Pupil sign, is the dilation and filling of the external opening of the uterus with clear mucus, and is a sign of the onset of the middle of the menstrual cycle, around the 13th-14th day.

The Pupil symptom is named after the German gynecologist Karl Pupil, who first described this physiological sign. He noticed that in the middle of the menstrual cycle, some women experience a change in the external opening of the uterus, which can be an indicator of ovulation.

During ovulation, the testicle is released from the ovary and moves down the fallopian tube towards the uterus. At this time, the level of estrogen, the main female sex hormone, reaches its peak, which leads to changes in the reproductive system. One of these changes is an increase in the number and change in consistency of the cervix.

The Pupil symptom can be noticed during self-examination or during a gynecological examination. In the middle of the cycle, the cervix becomes softer, highly mobile and its external opening (cervical canal) expands. In addition, there is an increase in the volume of clear mucus released from the cervix. This mucus has a specific consistency, reminiscent of raw chicken egg white.

The Pupil symptom is an important indicator for women planning pregnancy. It indicates the time of highest probability of conception. At this time, sperm can more easily penetrate the genital tract and reach the egg, which increases the chances of conception.

When using the Pupil Sign to determine your ovulation period, it is important to note that every woman is unique and her cycle may vary slightly from the average. Therefore, it is recommended to conduct detailed monitoring of your cycle for several months in order to more accurately determine the time of ovulation and the most favorable days for conception.

It should also be noted that the Pupil symptom is not the only method for determining ovulation and fertile days. There are other signs, such as changes in basal body temperature and the use of ovulation tests, that can be used in combination with the Pupil sign to more reliably determine ovulation.

In conclusion, the Pupil sign is an important physiological sign associated with the middle of the menstrual cycle. This is the expansion and filling of the external opening of the uterus with clear mucus, which can be noticed during self-examination or gynecological examination. This symptom is an indicator of the onset of ovulation and indicates the period of highest probability of conception. Women planning a pregnancy can use the Pupil symptom along with other methods of determining ovulation for optimal timing for conception.

However, to more accurately determine ovulation and fertile days, it is recommended to monitor your cycle in detail over several months and use a combination of different methods. Consulting with a doctor or gynecologist can also help in planning pregnancy and using the most effective methods for determining ovulation.

It is important to remember that every body is different, and cycles may vary from woman to woman. Therefore, carefully observing your own body and understanding its signals will help you achieve the best results when planning a pregnancy.



The pupil symptom is an important diagnostic indication for women who suffer from menstrual irregularities or problems with the reproductive system. This symptom manifests itself in the form of expansion and filling of the outer part of the uterus with transparent mucus and is observed on the 13th and 14th days of the period.

For many women, this symptom can cause anxiety and worry, especially if this phenomenon is observed for the first time. However, the pupil symptom is a completely natural symptom associated with the normal functioning of the female reproductive system.

Although the onset of menstruation signifies physiological changes in a woman's body, many women continue to have questions about menstruation and when it starts. One of the ways the body's system tells women that they are ready to menstruate is through the pupillary symptom.

This syndrome is a normal reaction of the cervical canal to the onset of menstrual bleeding. The cervical canal widens to make room for blood flow. This occurs at the level of the cervix, which is associated with the onset of menstruation. Mucus filling represents the consequences of estrogen production.

However, in some cases, the pupil symptom may also indicate the presence of other hormonal changes.