It was believed that the use of birth control pills of earlier generation, which have a lot of estrogen, increase the risk of cardiovascular diseases, probably because while their reception were determined the changes in levels of triglycerides (fats in the blood). While there is no conclusive evidence that the pills with low estrogen used today, really increase this risk, although progesterone that they contain has still insignificant effect on blood lipids. Included in pills estrogen to a certain extent inhibit secretion and inhibits the effect of progesterone secretion, thereby preventing the formation of atherosclerotic plaques, and heart disease. In Women who smoke, on the contrary, the use of oral contraceptives increase the risk of blood clots that can cause heart attack, stroke and other circulatory disorders. The combined pills are usually not recommended for smoking women aged 35 years and older. However, this type of contraception is generally not the best for those who smoke, regardless of age.
It is not recommended to use for women who have diagnosed with hyperlipidemia (elevated levels of lipids in the blood), those who suffer from heart disease, or suffered from systemic lupus erythematosus, stroke, a violation of hematopoiesis and blood coagulation (eg, thrombophlebitis), and cancer of breast or uterus, severe liver disease, abnormal vaginal bleeding of unknown nature in history. Other means of contraception are also shown women who suffer from migraine headaches, high blood pressure, diabetes, depression and sickle cell anemia. Contrary to po[censored] r beliefs contraceptive pills are not contraindicated for patients with fibrosis of the uterus or varicose veins, because they don't increase the risk for overall health.
For teenagers it is better to postpone the application of the contraceptive pills for about six months with the first menstrual period to not prematurely suppress the growth and formation of bone tissue. Combined oral contraceptives are contraindicated for breastfeeding mothers.
Women with hypertension should think about the use of so-called mini-pills which contain only progesterone, because they don't affect blood pressure. Mini-pills - the best choice for women with diabetes, because these drugs have a little effect on glucose tolerance. They are better to use, in patients suffering from constant migraines. However, it should be noted that reception of mini-pills often leads to disruption of the menstrual cycle, in particular of bleeding, and may cause the same adverse effects, as simple combined drugs - the changes in body weight and appetite, edema, depression, engorgement , the appearance of acne and hirsutism (increased hair growth). If, during the reception of mini- pills a woman gets pregnant, she has a very high risk of ectopic pregnancy, probably because of lower speed of fertilized egg movement, down the fallopian tube.
In some countries, doctors are convinced in the danger of mini-pills for nursing mothers, although in the United States and the UK, these contraceptives are prescribed regularly.