Ruptured PIP breast implants should not cause any long-term health problems, experts have said.
Worried women who have been given the faulty implants will welcome the news that if the devices rupture they could cause irritation but will not have any significant lasting effects.
The NHS Medical Directors expert group have said that the gel materials used inside the implants are neither toxic nor carcinogenic.
They were filled with non-medical grade silicone intended for use in mattresses and have been linked to rupture and swelling in the body.
Despite the good news, the experts warned that PIP implants are twice as likely to rupture as other brands.
The group, led by NHS medical director Professor Sir Bruce Keogh, found that after 10 years the PIP implants have a 15% to 30% chance of rupturing. Other breast implant brands have a 10% to 14% rupture rate in the same timeframe.
They added that if a PIP implant does rupture, it has been found to cause local reactions in a small proportion of women, which can result in symptoms such as tenderness or swollen lymph glands.
The British Association of Aesthetic Plastic Surgeons (BAAPS) said the report highlights the need for all implant providers to remove the devices - even if there are no symptoms of rupture.
BAAPS president Fazel Fatah, who was part of the expert group, said: "Despite rigorous testing showing no long-term danger to human health from the individual chemicals in the gel, the fact remains that PIPs are significantly more likely to rupture and leak and, therefore, cause physical reactions in an unacceptable proportion of the patients.
"We agree with the report findings that anxiety itself is a form of health risk and thus it is entirely reasonable for women to have the right to opt for removal - regardless of whether there has been rupture.