What is womb cancer?

Most womb cancer starts within the lining of the womb (called the endometrium). The lining of the womb is shed every month in women and people who have periods. The womb is an organ in the pelvis which is where a baby grows during pregnancy. Most womb cancers occur when cells lining the womb start behaving abnormally and grow uncontrollably.

There are two main types of womb cancer defined by where the cancer starts:

• endometrial cancer which starts within the lining of the womb
• uterine sarcoma (much rarer) which starts in the muscle wall of the womb.

Most womb cancers usually start in the endometrium and womb cancer is sometimes referred to as ‘endometrial cancer’. There are a few different types of endometrial cancer, some more common and some rarer.

Uterine sarcomas are much rarer and require different treatments to endometrial cancers. If you’d like to know more about these cancers see Cancer Research UK’s pages.

Womb cancer is the fourth most common cancer in women in the UK. Around 9,700 women are diagnosed with womb cancer each year.

What causes womb cancer and who’s at risk?

It’s not always clear why someone gets womb cancer. Having a high level of a hormone called oestrogen, without adequate balance of another hormone called progesterone, can increase your risk.

You may have unbalanced oestrogen if you:

• are overweight
• take some types of ​​hormone replacement therapy (HRT)
• have never given birth
• have ​​polycystic ovary syndrome (PCOS)
• go through the ​​menopause after the age of 55 years.

You might also be more likely to get womb cancer if you have:

• diabetes
• a family history of bowel, ovarian or womb cancer and inherited a gene that causes Lynch syndrome. This affects 1 in 278 people.
• take a medicine called Tamoxifen (used to treat breast cancer)
• had radiotherapy to your pelvis.

What are the symptoms of womb cancer?

The most common symptom of womb cancer is bleeding from the vagina that is unusual for you. This might be:

• bleeding from your vagina after the menopause
• bleeding between periods
• heavy or irregular bleeding during periods
• a change in your vaginal discharge.

Other symptoms of womb cancer include:

• a lump or swelling in your lower tummy
• pain in your lower back or between your hip bones (pelvis)
• pain during sex
• blood in your wee (urine) or blood when wiping after you wee.

Your symptoms might not be womb cancer and there are many other conditions that cause similar symptoms. One in 10 people who have bleeding after the menopause have womb cancer so it’s important to get checked by your GP. Finding womb cancer early makes it easier to treat.

How is womb cancer diagnosed?

Your doctor will ask you some questions about your symptoms. It’s a good idea to keep notes about your symptoms and take these with you to any GP or hospital appointments.

They may also want to do a physical examination which could involve:

• performing an internal vaginal examination to feel for lumps or tenderness in your womb/pelvis. This involves inserting one or two gloved fingers into your vagina whilst pushing down on your tummy
• inserting a speculum into the vagina to look for abnormalities in your vagina or cervix
• if you are out of date for your cervical screening (smear) test it’s a good idea to get this done at the same time, if possible. Cervical screening tests can’t diagnose womb cancer, but some abnormal vaginal bleeding can be due to problems with your cervix (neck of the womb).

Your GP may send you for an ultrasound scan. If this shows that the lining of the womb is thickened, you will need to see a gynaecological specialist to have a sample (biopsy) taken from the lining of the womb. You may want someone to go with you to your appointment for support.

The NHS has information about what tests you may have.

How is womb cancer treated?

There are a few different treatments for womb cancer. It will depend on the type of the cancer and if it’s spread.

Surgery, radiotherapy, chemotherapy and immunotherapy are the main treatments.

Most womb cancers are found at an early stage and can be treated with surgery to remove the womb – this is called a hysterectomy. This means you are no longer able to get pregnant. It often involves removing the ovaries and fallopian tubes too.

Some types of womb cancer can respond well to hormone treatment. If you are at very high risk for an anaesthetic/surgery, this may allow time for other treatments to improve your risks before going ahead with an operation, for example, treatment to help you lose weight.

Can I still get pregnant after womb cancer?

In young women with the type of cancer that can respond well to hormone treatment, it may be possible to treat the cancer with hormones first. This may mean you can delay surgery and allow time to have a baby in the future. Ask your doctor if this is something you would consider.

Will the cancer come back?

It’s normal to fear cancer coming back after treatment. If you spot any symptoms, speak to your GP. The symptoms do not necessarily mean the cancer is back.

You may find speaking to other women who’ve experienced womb cancer helpful.

Getting support

You can find out more information about womb cancer on the NHS website.

The charity Peaches Womb Cancer Trust provides support and information for those with and at risk of womb cancer. Go Girls supports women, men, trans people and non-binary people diagnosed with gynaecological cancer.

The charity The Eve Appeal has a guide for women about womb cancer. It also runs a nurse-led helpline and email support service, called Ask Eve.

Womb Cancer Support UK runs a private Facebook group for women affected by womb cancer.

You can also watch our webinar on gynaecological cancers. Dr Sarah Kitson, an expert in gynaecological cancers, discusses the most common symptoms of the five gynaecological cancers: cervical; ovarian; vulval; vaginal; and womb cancer She also explains who may be most at risk and the impact a diagnosis can have.

Read about our research into gynaecological cancers

As a women’s health charity, part of what we do is fund research to save and change the lives of women, girls and babies.