What is the cause of low tire pressure?

Women need to observe the development of the fetus at every stage of pregnancy to ensure that the baby is born healthy. If the fetal pressure is found to be too low during the B-ultrasound examination, it is likely caused by fetal maldevelopment or fetal arrest. I hope mothers can check the cause of the low fetal pressure. Let us now understand the reasons why tire pressure is too low.

Due to the low temperature in winter and the change in air pressure, the blood can concentrate and cause spasm of the large arteries, which can lead to high blood pressure in pregnant women or poor blood pressure control in those with existing gestational hypertension. This is also supported by my country's epidemiological survey data.

It is a case of fetal growth retardation. There are many reasons leading to fetal growth retardation, including immune factors, genetic factors, infectious factors, endocrine factors, anatomical factors, etc. Generally speaking, fetal growth retardation occurs during the first pregnancy. If the cause cannot be found, subsequent pregnancies will not be saved by blindly trying to preserve the fetus, and multiple miscarriages can cause great damage to the body.

When a woman is pregnant, the baby in her belly can be said to be the most important thing to her. If there is a need to take a plane at this time, the future mother will definitely worry about whether it will affect the baby. Factors that affect pregnant women's ability to board an aircraft include low air pressure, low oxygen, and small space in the cabin.

Low progesterone refers to luteal insufficiency, insufficient progesterone secretion by the corpus luteum, or premature decline of the corpus luteum, resulting in poor endometrial secretion, which can lead to difficulty in implantation of the fertilized egg or early miscarriage. Luteal insufficiency may be related to insufficient LH and FSH secretion from the pituitary gland or excessive or insufficient secretion of pituitary prolactin; some are due to the immaturity of the fertilized egg itself and its insensitivity to gonadotropin; some are due to the insufficient ability of the corpus luteum itself to synthesize progesterone, or are related to factors such as the uncoordinated ratio between estrogen and progesterone.