Difference between embryonic sac and gestational sac

After a woman becomes pregnant, the fertilized egg begins to develop in the uterus, usually forming an embryonic sac, gestational sac, etc. This is an object that should be seen in a normal pregnancy. In the early stages of pregnancy, women should pay attention to many issues to avoid signs of miscarriage, and the gestational sac is a sign of pregnancy that should be seen when the pregnancy is more than fifty days old. What is the difference between embryonic sac and gestational sac?

Difference between gestational sac and yolk sac

There is no order of yolk sac and gestational sac, but there is an order that can be determined by B-ultrasound examination. The yolk sac is inside the gestational sac. It is to provide hormonal support to the embryo, not food for the gestational sac. If you see a gestational sac in the uterus and a yolk sac inside the sac, it can be confirmed as an intrauterine pregnancy. The absence of pregnancy echo means that the embryonic germ and fetal heartbeat are not seen, not that the gestational sac is not seen. If you can see the yolk sac, you can definitely see the gestational sac.

Before seeing the embryo, when the gestational sac is still small, you may only see the yolk sac at first. As the embryo grows, the yolk sac gradually disappears. The gestational sac and the yolk sac are not the same. The gestational sac is the primitive placental tissue, a small embryo wrapped by the amniotic membrane and vascular network. The gestational sac is the initial form of pregnancy. At that time, the fetus has not yet formed, and the gestational sac comes first, followed by the yolk sac. When the embryonic sac can be seen on B-ultrasound, it is almost the same time when the yolk sac appears. First there is the yolk sac, then the embryonic bud and the fetal heart. The presence of a yolk sac indicates that the embryo can develop.

Generally speaking, the gestational sac and yolk sac can be detected on the 35th day of pregnancy, the embryo is formed on the 40th to 50th day of pregnancy, and the fetal heartbeat appears on the 50th to 60th day of pregnancy. If menstruation is delayed, ovulation may be delayed, and the appearance of the yolk sac, embryo and fetal heart will also be delayed accordingly. Taking the 28-day menstrual cycle as the standard, ovulation usually occurs on the 14th day of menstruation. If the menstrual cycle is 35 days, ovulation occurs around the 20th day of menstruation.

What are pregnancy diseases?

There are approximately six million pregnancies in the United States each year. Dystocia is the most serious consequence of pregnancy, but more women are affected by pregnancy-related diseases, such as heavy bleeding, tubal pregnancy, pregnancy-induced high blood pressure, infection, and depression. Diseases that may be caused by pregnancy: Prepartum cardiomyopathy Prepartum cardiomyopathy, also known as peripartum heart disease, is a congestive myocardial disease of unknown cause that occurs before and after delivery.

It is more common in multiparous women, and women with pregnancy-induced hypertension and multiple pregnancies are more likely to suffer from this disease; nutritional deficiency and infection are also related to the onset of the disease. The main lesions are in the myocardium, manifested as cellular edema, degeneration and necrosis, which often occur between 36 weeks of gestation and 12 weeks after delivery. The body temperature is mostly between 37.5 and 38.5℃ and can last for 3 to 7 days, manifested as congestive total heart failure, with symptoms such as shortness of breath, dyspnea, palpitations, shortness of breath, edema, cyanosis, etc. Physical examination shows: increased blood pressure, decreased pulse pressure, enlarged heart, grade I~I blowing systolic murmur heard in the apex area, moist rales at the base of the lungs, and electrocardiogram indicating myocardial damage with T wave changes as the main feature.

After discovery, you should go to the hospital for systematic treatment as soon as possible. The main focus should be on controlling heart failure, which responds well to diuretics and digitalis preparations and can be used for a short period of time. At the same time, vitamin B1, vitamin C and energy mixture can be given to protect the myocardium, and corticosteroids and sedatives can be used as appropriate. After myocardial disease is completely cured, those without children can become pregnant again under close supervision. Those who already have children or have suffered from heart failure during pregnancy should use contraception or sterilization.

Postpartum depression Postpartum depression is a type of depression that women experience due to physiological and psychological factors after giving birth. Symptoms include tension, doubt, guilt, fear, etc. In very rare severe cases, there may be thoughts and actions of despair, running away from home, harming the child, or suicide. Research shows that 50-75% of women will experience a dark emotional period with the birth of their children. For most women, the signs are not obvious or are fleeting, and they experience a period of emotional instability in their personalities, such as unexplained crying or a bad mood.