^
A
A
A

What is hormonal contraception?

 
, medical expert
Last reviewed: 19.10.2021
 
Fact-checked
х

All iLive content is medically reviewed or fact checked to ensure as much factual accuracy as possible.

We have strict sourcing guidelines and only link to reputable media sites, academic research institutions and, whenever possible, medically peer reviewed studies. Note that the numbers in parentheses ([1], [2], etc.) are clickable links to these studies.

If you feel that any of our content is inaccurate, out-of-date, or otherwise questionable, please select it and press Ctrl + Enter.

For the purpose of hormonal contraception synthetic analogues of female sex hormones, estrogens and progesterone, whose structure is close to natural, are used, and the activity is much higher. This allows you to get a contraceptive effect when using them in very low doses.

The most effective method of preventing unwanted pregnancy is hormonal contraception, based on the use of synthetic analogues of female sex hormones.

Epidemiology

Hormonal contraception is very popular in Western Europe: for example, in England this type of contraception is used by 22%, in France - 36%, in Germany - 48%, in Italy - 23% of women of reproductive age, while in Ukraine hormonal contraception 8.6% of women of reproductive age use it.

The mechanism of action of hormonal contraceptives

The mechanism of action of hormonal contraceptives is based on:

  • suppression of the secretion of gonadotropin-releasing hormone by the hypothalamus;
  • blockade of ovulation;
  • condensation and thickening of cervical mucus, which is detected 48 hours after the initiation of administration of the gestagenic component, with cervical mucus becoming more viscous and characterized by reduced crystallization;
  • violation of implantation due to changes in the morphological properties of the endometrium;
  • violation of the function of the yellow body with the introduction of exogenous hormones, even with ovulatory cycles.

Efficacy of hormonal contraception

As studies show, the theoretical and practical effectiveness coincide almost completely for those methods of contraception, the use of which is not related to the presence of the consumer factor. The Perl index for injecting contraceptives is 0.3 in both cases, the implant efficiency is 0.04 for both values, respectively.

Medical control of women using hormonal contraception

When appointing hormonal contraception, as well as in control examinations of women already using contraceptives of this group, the doctor must take into account:

  1. Clinical analysis of the patient's complaints and condition.
  2. Dynamics of blood pressure.
  3. Indicators of the coagulation system and blood sugar level.
  4. Cytology of vaginal and cervical smears.
  5. Colposcopy data.
  6. Condition of mammary glands.

It is also necessary to remember the possible side effects of drugs when analyzing the complaints of patients, the question of individual acceptability of which is solved, as a rule, in the first 3-4 months. Use of a contraceptive. It is advisable to appoint a woman for the first follow-up examination at 3 months. (menstrual cycle) after prescribing. In the future, if there are no examinations due to the specifics of the application of the method, follow-up examinations are carried out once every 6 months.

Absolute contraindications to the use of hormonal contraceptives

  1. Pregnancy.
  2. Arterial or venous thrombosis, thrombophlebitis, ischemic heart disease, hypertension, or previous use of COC hypertension.
  3. Cerebral ischemia, including severe local migraine.
  4. Diseases of the liver: cholestatic jaundice of pregnant women in anamnesis. Violations of the excretory function of the liver.
  5. Presence in the anamnesis of pathological conditions, on the occurrence or course of which sex steroids influence; diseases that occurred during pregnancy or complicated the course of a previous pregnancy (for example, herpes of pregnant women, hemolytic syndrome, chorea and otosclerosis).
  6. Malignant hormone-dependent tumors (eg, breast cancer).
  7. Bleeding from the genital tract of unexplained etiology.

Hormonal contraception and pregnancy

In those rare cases when a woman accidentally took hormonal contraceptives during an early pregnancy, their damaging effects on the fetus were also not revealed.

Translation Disclaimer: For the convenience of users of the iLive portal this article has been translated into the current language, but has not yet been verified by a native speaker who has the necessary qualifications for this. In this regard, we warn you that the translation of this article may be incorrect, may contain lexical, syntactic and grammatical errors.

You are reporting a typo in the following text:
Simply click the "Send typo report" button to complete the report. You can also include a comment.