Shield

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Shield placement

The shield (Lea's Shield) is a reusable, cup-shaped device that fits over the cervix and is held in place by suction and support from the vaginal wall. Because it's not held in place by the cervix like the cervical cap is, the silicone shield is one-size-fits-all. A valve on the device vents air during insertion, creating a suction effect for a snug fit. A control loop attached to the cup assists with insertion and removal.

Effectiveness rate. Based on projections from a study of women who used the shield for six months, the effectiveness rate is 85 percent. That means that of every 100 women who use the shield for one year, 15 will get pregnant. Because childbirth can alter how the shield fits, this method may have a higher failure rate for women who have given birth.

Side effects and health risks. Serious side effects associated with the device are rare. Some women may be sensitive to spermicide or silicone. Using the shield may increase the risk of the following:

• Urinary tract infection
• Vaginal infection
• Toxic shock syndrome with prolonged use

The shield doesn't protect against STDs.

How to use the shield. The shield comes in one size, so custom fitting isn't necessary. If you decide on the shield, your doctor demonstrates how to insert and remove it. Use the shield with spermicide. Insert the device anytime before sex.

Here are some additional tips for shield insertion and removal:

• Coat the inside of the bowl, the leading edge of the bowl (the part away from the loop) and the valve with spermicide.
• Press the rims on each side of the bowl together between your thumb and index finger. While holding the shield with the valve facing downward and the loop outward, use your fingers to insert the folded shield. This can be done standing, with one foot propped up, squatting or lying on your back.
• Insert the shield into the vagina, pushing it upward as far as it will comfortably go. It should sit over the cervix.
• For correct placement, all of the air between the cervix and the device must be vented through the valve to create the proper seal.
• To remove the shield, grasp the loop with your index finger and gently twist until the suction is broken.

After sex, leave the shield in place for at least eight hours and up to a maximum of 48 hours. After removal, wash the shield with mild soap and warm water and then let it air-dry. With proper care, the shield can last up to six months before it needs to be replaced, but examine it regularly for holes, tears or leaks.

Some women may not be suited for the shield due to:

• Frequent urinary tract infections
• Poor vaginal muscle tone
• An infection or, in rare circumstances, a scar from a cut or tear in the pelvic area

Cost and availability. The cost of the Lea's Shield is $65. The initial examination to learn how to insert and remove the device can range in cost from about $50 to $200.