As with all surgery there are potential risks. There are the risks of having a general anaesthetic and the risks that exist for any operation. There are also risks that need particular consideration with breast enlargement:
Bleeding and haematoma
Bleeding may occur after any operation. A build up of blood around the implant after the operation is called a haematoma. The great majority of patients do not have a haematoma. If you do have a haematoma it is usually advisable to re-operate to remove the haematoma. Although this usually means an extra night in hospital it does not normally delay recovery by a significant amount. You are not left without an implant.
Infection
Infection is a rare complication of breast augmentation. If an implant becomes infected it usually needs to be removed. Once the infection has settled an implant can again be placed behind the breast. This should normally be six months after the infection has fully settled.
Seroma
Fluid build up around an implant called a seroma is an unusual problem. The fluid is usually absorbed by the body.
Implant extrusion (‘rejection’)
If implants appear to be rejected it is usually due to infection (see above). Large implants or where the skin is thin may cause the skin to break down giving the impression of the body rejecting the implant. This is usually only a problem with very large implants. (True rejection is where the body’s immune system attacks something in the body such as a kidney transplant. This process does not occur with implants).
Asymmetry
Many women’s breasts are naturally asymmetrical. The chest wall may be a different shape on each side or the breasts themselves may have a different shape, position or volume. Sometimes the difference may be disguised by breast augmentation. Sometimes asymmetry may be more obvious after surgery.
Wrinkles, folds, knuckles irregularities
Breast implants are made in two parts, the outer shell and the inner filling. Sometimes the implant may lie such that folds or wrinkles form in the outer shell. These may then be felt through the skin or occasionally be visible. If a fold occurs near the edge of the implant then a prominence may be felt or seen. These are more likely if you are very thin or have very little breast tissue. The great majority of people do not have these problems.
Capsular contracture (‘implants going hard’)
Following breast enlargement with implants the body forms a layer of scar tissue around the implant. This has some advantages because if the outer shell of the implant breaks this capsule usually keeps the silicone with in the capsule and so it does not leak out. However, in some people the capsule starts to tighten and this makes the implants become round and feel hard. This is called a capsular contracture (‘implants going hard’). At worst they can become like ‘tennis balls’ and even be painful. Most capsular contractures form in the first year although less than 5% percent of patients are dissatisfied and seek further surgery at this stage. Capsular contractures may occur at any time following surgery. Capsule formation is reduced by using textured implants and may be reduced by placing the implant partly under the pectoral muscle (under the muscle). The presence of a capsular contracture does not necessarily require treatment. The main treatment for breast implant capsules involve surgery. A capsulotomy involves removing the implant and surgically dividing the capsule to release it.The implant can be replaced during the same operation. There tends to be a high rate of recurrence of the capsule following this procedure. A capsulectomy is more involved in that the capsule is removed with the implant rather than just split. The recurrence rate for capsules following capsulectomy is lower than for capsulotomy. If capsules recur further capsulectomies can be carried out but recurrence is common. It is important to appreciate that the cost of capsule surgery is similar or greater than for the original breast augment. For someone with a strong tendency to make capsules the choice may lie between living with capsules or having the implants removed. Closed capsulotomy is no longer recommended. This involved squeezing the breast until the capsule splits. Recurrence was common.
Rupture, gel bleed & silicone granuloma
Implants are very strong. You can stand on them and they do not break. However they are man made and over time the silicone gel that is with in the silicone elastomer shell may leak out. This is called ‘gel bleed’. For the most part the capsule around the implant keeps the silicone gel where it should be. However if significant amounts of gel leak out into the tissues you may develop a lump called a silicone granuloma. These usually require removal along with the implant although another implant can usually be put in at the same operation.
Loss of nipple sensation
Frequently the nipples are over sensitive following breast enlargement. This usually settles within 4-8 weeks. Sensation may also be reduced and the nipples may be numb. Numbness is usually temporary although recovery can take a number of weeks. Uncommonly the nipples can be permanently numb.
Tenderness and pain
Tender and painful breasts particularly before a menstrual period is experienced by many women. If you already experience breast tenderness or pain then implants may make it worse and this is something you must consider. Some women who have not had breast pain in the past find that they do have areas of tenderness or (rarely) pain following breast augmentation.
Deep vein thrombosis (DVT):
A breast augmentation is usually an operation carried out under general anaesthetic so there is a risk of a thrombosis (clot) in the deep veins of the legs (a DVT). A serious complication of a DVT occurs when a thrombus breaks off and travels to the lungs to cause what is called a pulmonary embolus (PE). A large pulmonary embolus can be life threatening. During your operation and time in hospital we will take measures to protect you from DVT formation, although these cannot guarantee complete protection. Once you go home the best prevention of DVTs and PEs is regular walking.
The combined oral contraceptive pill (the pill) increases the risk of DVT with surgery. If you are on one of these pills you should discuss this with your surgeon. If you stop the pill four to six weeks before your surgery then your risk returns to normal. If you stop the pill and you are having sexual intercourse then you must use alternative contraception otherwise you may become pregnant.