Paroxysmal uterine contractions

Introduction Uterine contraction means that the entire abdomen feels hard tied, or has a tight feeling and may even have pain. However, when the fetus is active or the fetus grows up and the uterus is pulled, it also seems to have uterine contractions. Aura of late abortion has paroxysmal uterine contractions.

Cause

During pregnancy, due to the growth and development of the fetus and the need for subsequent delivery, a series of adaptive physiological changes occur in the maternal system, and the uterus changes of the reproductive system are most obvious. The uterus is pregnant with the fetus. As the fetus grows up and the placenta produces hormones, the uterus increases and softens. The uterine cavity volume increases 1000 times and the uterus weight increases 20 times. The histological changes are mainly uterine myocyte hypertrophy, and the cytoplasm is filled with actin and myosin with contractile activity, providing material conditions for postpartum uterine contraction. The uterus during pregnancy often has contractions, which are physiological and pathological.

an examination

Related inspection

Gynecological ultrasound examination gynecological examination

1. Physical examination of the patient's general condition, with or without anemia, and measurement of body temperature, blood pressure and pulse. Under the disinfection conditions, gynecological examination, pay attention to whether the cervix is dilated, whether the amniotic sac bulges, whether the pregnancy product is blocked in the cervix; whether the size of the uterus is consistent with the number of menopause, and whether there is tenderness. The bilateral attachments should be examined for lumps, thickening and tenderness. The operation should be gentle during the examination, especially for suspected abortions.

2. Auxiliary examination For those who have difficulty in diagnosis, the necessary auxiliary examination may be used.

(1) B-mode ultrasound imaging: currently widely used. It has practical value for differential diagnosis and determination of abortion type. For suspected threatened abortion, the embryo or fetus can be determined according to the shape of the gestational sac, with or without fetal heart reflex and fetal movement to guide the correct treatment. Incomplete abortion and missed abortion can be determined by B-mode ultrasound.

(2) Pregnancy test: With immunological methods, the clinical use of test strips in recent years is meaningful for the diagnosis of pregnancy. In order to further understand the prognosis of abortion, radioimmunoassay or enzyme-linked immunosorbent assay is used to quantitatively measure HCG.

(3) Determination of other hormones: Other hormones mainly have blood progesterone, which can help determine the prognosis of threatened abortion.

Differential diagnosis

The amount of uterine bleeding during abortion is generally higher than that of ectopic pregnancy; it is also different from other abnormal pregnancy. Ectopic pregnancy is mostly vaginal bleeding; the bleeding of the hydatidiform mole is often dark red, can also repeatedly bleed, and even a lot of vaginal bleeding, such as careful examination, sometimes in the blood can be found blister-like tissue. Dysfunctional uterine bleeding occurs at both ends of the reproductive age. It occurs in people over 40 years old and often has a history of menopause. Although there is a lot of bleeding in the vagina, there is no abdominal pain, and there are few other discharges. In all such cases, combined with the history of pregnancy and the presence or absence of contraception, it is not difficult to distinguish.

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