Some women will find that they are pregnant after placing an IUD (ie, "Sheung Wan"). What causes this?

1. The material, texture, shape and size of the IUD itself are related. If there is an inner core stent ring, the supporting force is better and conforms to the uterine dynamic principle. Although it is slightly difficult to place, it is not easy to fall off; while the simple metal ring and the softer ring are easy to place, but they are easy to fall off.

Second, the age, parity and tightness of the uterine orifice of the upper ring are also important factors that affect the loss of the birth control ring. Women who are young, have little birth or are breast-feeding may not easily fall off because of the elasticity and sensitivity of the uterine muscles; those with loose cervix or uterine prolapse may easily fall off.

Third, the doctor's placement method and placement technique are also important factors for the birth control ring to fall off. The time of placement of the birth control ring, whether it reached the bottom of the palace, and whether to inform the patient of contraindications after the ring was placed. Sexual life is strictly forbidden within two weeks after the ring is placed. During this period, the contraceptive ring has just entered the uterus and is in the rejection stage. Falling off, resulting in decreased contraceptive effect and pregnancy with the ring.

In general, shedding of the birth control ring is common in the first year after ringing, especially in the first half of the year. Because the uterus has adapted to the ring for a long time, the chance of falling off will be greatly reduced. Therefore, women who have just been "switched on the ring" should have an examination, such as B-ultrasound, in one month, three months, and six months. In order to find out the situation in time, take the correct treatment method.

The consequences of ring pregnancy are different from general pregnancy. It has a higher incidence of spontaneous abortion, pre- and post-natal bleeding, stillbirth, and premature delivery. Therefore, for the health and safety of mothers and fetuses, women with ring pregnancy should terminate their pregnancy as soon as possible.