Causes Of Irregular Menstrual Cycles?

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, I’m a 22-year-old girl, I’m not married, I used to menstruate first when I was 12 years old, the first time menstruation was very long – + 1 month until I went to the doctor and was given medicine (I forgot the name of the medicine) after that I regularly menstruate but at the age of 16 I often did not experience menstruation every month, 3 years after it was about 2017 I went to my doctor at USG and the results were no problem, 3 months after that I went again to my obstetrician at USG again and the doctor also said the same was no problem I was given medicine (I forgot the name) and only after taking the drug I just had another menstruation and blood that came out very much even every hour I had to change pads, after that I did not experience menstruation again until the In 2019 I experienced menstruation and blood that came out so much more until it came out, I was confused 3 doctors I met said I had no problems Ah but why is my menstrual cycle like this? even though I haven’t had intercourse because I’m not married.

1 Answer:

Hello Lee Hanna,


The normal menstrual cycle is between 21-35 days. Menstrual duration ranges from 3-7 days. Menstruation that is not within the time limit can be said to be abnormal. The process of menstruation is the process of decaying the inner lining of the uterus called the endometrium. Menstruation is strongly influenced by hormonal balance, especially the reproductive hormones namely estrogen and progesterone.


Non-current menstruation (which is not due to pregnancy) is a menstrual cycle that exceeds 35 days, even in 1 year patients can only get 2-3 times / year or even no menstruation at all (amenorrhea). Rare periods (menstrual cycles> 35 days) can be caused by the following:

Polycystic ovary syndrome
Impaired thyroid gland function
The use of hormonal contraceptives
Prolactinoma
Perimenopause
Heavy sport, athlete
Breastfeeding
Eating disorders (anorexia, bulimia), impaired body nutrition, drastic weight loss

In the case of oligomenorrhea as you experience it. Some examinations need to be done apart from ultrasonography, such as examination of hormone levels in the blood (prolactin, beta hcg, FSH, LH, and androgen hormones), thyroid function examination (TSH), MRI examination if there are suspected lesions in parts of the brain that affect hormone balance , other blood tests to rule out the possibility of systemic diseases that interfere with menstruation. We recommend that you consult with your obstetrician to get the appropriate examination. Explain to the doctor your illness and treatment history in a coherent and detailed manner, so that the doctor can get a proper picture of your condition. Thus the explanation from me, hopefully useful.

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