During pregnancy, women often develop anemia (anemia). She due to the factthat part of the iron mothers spent on the construction of bodies hematopoiesis fetus. Especially need fetus in iron increases in the 16-20 weeks,when actively construct his bone marrow hematopoiesis. Therefore, reduction of hemoglobin to undergo treatment antanemic,and also enhance food products rich in iron.

Advances in medicine over the past years have allowed napit lot of information of intrauterine life the fetus. At present, the fruit of the "dumb" object supervision of your doctor, into the womb "patient" who needs medical care at the present level, as any other patient.

A child inherits from their parents not only features a close resemblance, but factors determining the state of his health. Earlier, we mentioned that merging of male and female gametes fertilized egg again receives a full set of chromosomes - 23 pairs,of which half of maternal and half paternal origin. However, under certain adverse factors associated either with the external environment or with older age of parentsimpact of training, illness,observed violation of the discrepancy any pair of chromosomes. In such cases, the fertilized egg contains excess or deficiency of the chromosome set, and then the cells developing embryo contains 45 or 47 chromosomes. Diseases in which observed violation of the chromosome set, called chromosomal human disease. Typically, the affected fetus aborted, or born child with physical and mental developmental defects. Often, such children occur in the progeny of older parents, because they are more likely than young,observed deficiencies in the chromosome set of the aging genital cells.

The results of the medical genetic centers of a number of countries allowed establish that the frequency of fetal malformations with maternal age from 35 to 39 years observed in one out of 60 couples, and at the age of 40 to 44 years - at one of 40 pairs.

Optimal age for first birth is the age parents of 20 to 25 years. If the damage from the parents transporter genetic information - the gene, there are genetic or hereditary disease. Each chromosome unites hundreds or thousands of genes. Effects genes is that they define a program for the synthesis of enzymes in biological construction of the future organism. Some physical and chemical environmental factors under the action of the germ cells of parents cause irreversible changes in the genes. The most severe damaging effect have radioactive isotopes, X-rays, cosmic and gamma - rays.

Vein damage, transmitted when the fertilized egg ceases to be in charge truly those or other processes, such as metabolism in organism, and then the metabolism is disturbed, leading to abnormal development of organs of vision, hearing, various abnormalities of the nervous system of the fetus.