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Treatment

The treatment for breast cancer in men largely depends on how far the cancer has spread. Possible treatments include surgery, radiotherapy and medicines.

Treatment overview

You'll be cared for by a team of specialists who will help you make decisions about your treatment.

Your recommended treatment plan will depend on how far the cancer has spread, but the final decision about going ahead with treatment is yours.

You may find it useful to write a list of questions you'd like to ask your team. For example, you could ask about the advantages and disadvantages of particular treatments.

If the cancer has not spread very far beyond your breast, a cure may be possible. This will usually involve surgery, possibly followed by radiotherapy or a course of medicine.

Secondary breast cancer

Some men may discover they have breast cancer after it has already spread to other parts of the body (metastasis), and for some men breast cancer may come back after initial treatment.

In these cases, the type of treatment you have may be different. Secondary cancer, also called "advanced" or "metastatic" cancer, is not curable.

Want to know more?

Surgery

An operation called a mastectomy is the main type of surgery for breast cancer in men.

It involves removing all the breast tissue from the affected breast as well as the nipple, and possibly also the glands in your armpit and some of the muscle under your breast.

The operation is done under a general anaesthetic (where you're asleep). You'll probably need to stay in hospital for 1 to 2 days.

It can take several months to fully recover. The Royal College of Surgeons of England has a leaflet for people recovering from a mastectomy with detailed information and advice.

Your body after surgery

After surgery, there'll be a straight scar across your chest where your nipple used to be and possibly a dent where the breast tissue was removed.

The scar will be raised and red at first, but it should flatten and fade with time. The area will also be bruised and swollen for a few weeks.

It may be possible to have further surgery at some point to improve the appearance of your breast and create a replacement nipple. Other options include tattooing a new nipple on to your chest.

Talk to your care team about how your chest will look after surgery and what options you have for improving its appearance if necessary.

Possible complications

Side effects and risks of a mastectomy include:

  • pain and discomfort for 1 to 2 weeks – you'll be given painkillers to help with this
  • numbness or tingling around the scar and in your upper arm – this should pass within a few weeks or months, but can occasionally be permanent
  • a wound infection, causing redness, swelling, warmth or discharge from the wound – tell your nurse or doctor if you get any of these symptoms
  • painful swelling in your arm (lymphoedema) – this may be permanent, but can be treated. Read more about treatments for lymphoedema

Before having surgery, talk to your surgeon and breast care nurse about the possible risks.

Radiotherapy

Radiotherapy is a treatment where radiation is used to kill cancer cells. In breast cancer in men, it may be used to:

  • help stop the cancer coming back after surgery
  • slow down the spread of the cancer and relieve symptoms if a cure is not possible

It involves several treatment sessions where a machine is used to carefully aim beams of radiation at the cancer. Each session usually lasts for 10 to 15 minutes and you can go home afterwards.

A typical course of treatment involves 2 to 5 sessions each week over 3 to 6 weeks.

Side effects

Radiotherapy is not painful, although you'll probably get some side effects. Most of these should pass once treatment stops.

Common side effects of radiotherapy include:

  • sore, red skin (similar to sunburn) on your chest
  • feeling very tired
  • feeling sick
  • temporary hair loss in the area of your chest being treated

Read more about the side effects of radiotherapy.

Cancer treatment: what happens during radiotherapy?
In this video, an expert describes what happens and advises what questions to ask if you're referred for radiotherapy.
Hormone therapy

Hormone therapy is a treatment that involves taking medicine to block the effects of a hormone called oestrogen.

Around 9 in 10 breast cancers in men are "oestrogen receptor positive", which means the cancer cells need oestrogen to grow.

Hormone therapy can be used to:

  • help stop the cancer from coming back after surgery
  • slow down the spread of the cancer and relieve symptoms if a cure is not possible

The most commonly used hormone medicine is tamoxifen. This is taken as a tablet or liquid every day, usually for 5 years, but sometimes for longer.

Side effects

Tamoxifen can cause some unpleasant side effects, such as:

Tell your care team if you have any troublesome side effects. Other hormone medicines, such as a type called aromatase inhibitors, are available if needed.

Chemotherapy

Chemotherapy is a treatment where powerful medicine is used to kill cancer cells. It may be used if hormone therapy is not suitable for you.

In breast cancer in men, chemotherapy may be used to:

  • help stop the cancer coming back after surgery
  • slow down the spread of the cancer and relieve symptoms if a cure is not possible

It involves several treatment sessions where medicine is given directly into a vein. Each session usually lasts a few hours and you can go home afterwards.

A typical course of treatment involves 6 sessions, with a break of a few weeks between each one to allow your body to recover.

Side effects

Chemotherapy can cause a range of unpleasant side effects, although most of these should pass once treatment stops.

Side effects of chemotherapy can include:

  • feeling very tired
  • feeling and being sick
  • temporary hair loss
  • being more vulnerable to infections – tell your care team if you feel unwell or develop symptoms such as a fever and chills
  • loss of appetite
  • diarrhoea
  • infertility

Read more about the side effects of chemotherapy.

Targeted therapies

Targeted therapies are medicines that change the way cells work and help to stop cancer from growing and spreading. Not all types of breast cancer can be treated with targeted therapies.

Trastuzumab (Herceptin)

Trastuzumab (brand name Herceptin) is a medicine that blocks the effect of a substance called human epidermal growth factor receptor 2 (HER2).

In some breast cancers in men, HER2 helps cancer cells grow.

Trastuzumab is usually used after radiotherapy or chemotherapy to help stop the cancer coming back.

It's given as a liquid directly into a vein, or as an injection under your skin. You go into hospital for treatment and can go home shortly afterwards.

A typical course of treatment involves a treatment session every 3 weeks for a year.

Side effects

Trastuzumab can cause some unpleasant side effects, such as:

  • a reaction to the medicine – this can cause chills, a fever, swelling of your face and lips, headaches, hot flushes, feeling sick, wheezing and breathlessness
  • tiredness and difficulty sleeping
  • diarrhoea or constipation
  • an increased risk of infections
  • loss of appetite and weight loss
  • pain in your muscles, joints, chest or tummy
  • heart problems

Abemaciclib (Verzenios)

Abemaciclib (brand name Verzenios) is a type of targeted therapy medicine used to treat certain types of cancer.

It can stop or slow the growth of cancer by blocking the action of kinase, a protein that helps cancer cells grow and divide.

Abemaciclib is given alongside hormone therapy. You take it as a tablet twice a day.

Palbociclib (Ibrance)

Palbociclib (brand name, Ibrance) is also a targeted therapy medicine. It's used alongside hormone therapy medicines, such as fulvestrant, to treat advanced breast cancer or breast cancer that has spread (metastatic breast cancer).

Side effects

Common side effects of abemaciclib and palbociclib include:

Find out more about abemaciclib and palbociclib, and when they might be given, on the Breast Cancer Now website.

Last Reviewed
28 September 2023
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Hedgegrail Pharmacy in Stoke Poges offers a wide range of prescription and over-the-counter medications, as well as health and beauty products
Company Registration: 2041755
Premises GPhC: 1099892
Superintendent: Baljit Singh Bahra
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