An ovarian cyst is a collection of fluid in the ovary. The vast majority of ovarian cysts are not cancerous. There are two types of cysts – simple cysts and complex cysts.
Ovarian cysts are very common in women at reproductive age. When an egg is developing and released from the ovary, i.e. during ovulation, it is normal to have fluid accumulated in the ovary and form a follicle. This follicle forms a simple cyst, or so-called physiological cysts. When this follicle expands, some women may experience some pressure or pain in the pelvic area, while most women do not feel the cyst at all. Such cysts may only be discovered incidentally during a routine gynaecological checkup or ultrasound scan. They are harmless and will go away by themselves as the fluid is absorbed back into the body.
On the other hand, some cysts do not resolve spontaneously. These are complex cysts, also called pathological cysts. Surgery would be needed to remove the cyst.
Complex (pathological) cysts do not go away by themselves and may cause complications.
- At an unpredictable point in time, the cyst may rupture, causes internal bleeding or infection. They will lead to severe abdominal pain.
- Occasionally, the cyst causes the ovary to twist around, cutting the blood flow to the ovary and causing severe pain – the scenario of ovarian torsion. Emergency surgery will be needed to untwist the ovary and remove the cyst. If the blood flow has stopped for too long, the ovary may not be salvageable. In this case, the whole ovary will need to be removed.
When pathological cysts are diagnosed, it would be better to remove them in a well-prepared elective surgery by your gynaecologist, rather than treating the cysts with an emergency surgery when acute complications occur.
Besides, although ovarian cancer is uncommon, removal of the cysts for pathology diagnosis is an important step to rule out cancer.
Minimally-invasive laparoscopic techniques can be used to remove complex cysts (laparoscopic cystectomy). The health of the ovary can be preserved. The cyst will be sent to pathology to confirm absence of cancer.
Compared to traditional open surgery, minimally invasive technique surgery carries advantages of less pain, minimised scarring, reduced infection, a quicker recovery and earlier return to normal activities.
In women after menopause, the ovaries are no longer needed for fertility purpose. The doctor can remove the diseased ovary together with the healthy ovary on the other side in the same surgery. Removing both ovaries can completely eliminate the risk of ovarian cancer or re-growth of any ovarian cysts in the future.
How can a gynaecologist help when I have an ovarian cyst?
If you have an ovarian cyst, our gynaecologist will help you:
- to differentiate whether it is a normal physiological cyst or a pathological cyst;
- to determine the likelihood that the cyst will go away by itself;
- to develop an observation plan with follow-up pelvic scans to make sure the cyst resolves; or
- to remove the cyst - most likely with our specialised minimally-invasive surgery techniques.
Dr Johnson is also knowledgeable about warning features on ultrasound scan that are associated with the risk of cancer. For these rare cases, he will work together with a cancer expert (oncologist) to develop the best treatment plan.
Each woman is individual and her situation requires an individual plan of management.
Most of cysts on the ovary can go away by themselves – these cysts will resolve after a few weeks and do not need any treatment.
However, some cysts are pathological – they do no resolve spontaneously. These cysts need to be removed with surgery.
Cysts need to be removed when:
- they do not go away after several weeks
- they are large or continue to grow
- they cause severe pain
- cancer is suspected.
Removing the cysts can prevent complications of the cysts in the future. These complications include rupture, infection, internal bleeding, or ovarian torsion. When complication occurs, women may have severe acute pain and an emergency surgery will be needed
Additionally, once the cysts are removed, they can be sent for pathology to make sure that there is no cancerous tissue.
Laparoscopic cystectomy
Ovarian cysts are removed with a surgery called cystectomy. In cystectomy, only the cyst is removed, preserving the healthy ovarian tissues. We perform most of our cystectomy using minimally-invasive techniques – laparoscopic ovarian cystectomy.
Cysts need to be removed when:
- they do not go away after several weeks
- they are large or continue to grow
- they cause severe pain
- cancer is suspected.
Removing the cysts can prevent complications of the cysts in the future. These complications include rupture, infection, internal bleeding, or ovarian torsion. When complication occurs, women may have severe acute pain and an emergency surgery will be needed.
Additionally, once the cysts are removed, they can be sent for pathology to make sure that there is no cancerous tissue.
Laparoscopic cystectomy
Ovarian cysts are removed with a surgery called cystectomy. In cystectomy, only the cyst is removed, preserving the healthy ovarian tissues. We perform most of our cystectomy using minimally invasive techniques – laparoscopic ovarian cystectomy.
In laparoscopic surgery, a few tiny incisions (typically 0.5-1.0cm) are made on abdominal skin. Through these tiny incisions, Dr. Johnson puts in a slender, high-definition telescope (laparoscope) to confirm the presence of ovarian cyst. At the same time, the surgeon also carefully checks the condition of other pelvic organs, including the other ovary.
Next, laparoscopic instruments are introduced to remove the cyst from the ovary. These fine, special devices will enable the surgeon to perform precise minimally-invasive surgery. Finally, the cyst will be taken out of the body with dedicated techniques, such as using a specially designed bag.
Compared to traditional open abdominal surgery, minimally-invasive surgery causes less trauma to the body. Recovery is much faster. Patients can often get up within a few hours of surgery, and move around without major difficulty on the next day. Hospital stay is reduced. Most of our patients go home on the next one or two days, some even on the same day of surgery, depending on the complexity and extent of the surgery. Normal activities can be resumed much earlier than open surgery, usually in one to two weeks’ time.
Removal of ovaries - Laparoscopic oophorectomy
In some cases, the entire ovary may need to be removed, for example, when the cyst is very large and has destroyed the ovary. Because of new advances in laparoscopic instruments and techniques, the entire ovary can be removed with minimally invasive surgery as well. Surgical removal of the ovary is called oophorectomy.
Women are normally born with two ovaries. If the other ovary is healthy and preserved, it will still function to maintain normal hormone cycles and ovulation for potential conception and pregnancies in the future, even after the diseased ovary is removed.
For women after menopause, the gynaecologist may recommend removal of both ovaries in the same operation. This will completely eliminate the risk of re-growth of the cysts or ovarian cancer in the future.