Measuring and tracking a lump

This page explains how to measure and track a lump if your GP has asked you to monitor it at home.

If you have a lump

If you notice a lump anywhere in the body, the first thing you should do is visit your GP. They may tell you to keep monitoring the lump for changes. If they do, you should follow the instructions on this page.

What does having a lump mean?

Having a lump does not mean you have sarcoma. Sarcoma is rare, and most lumps are not sarcoma. It’s more commonly a lipoma (a non-cancerous fatty lump).

One of the most common symptoms of sarcoma is a lump which is growing, changing, or bigger than a golf ball.

This is why your GP may first tell you to check for changes to the lump, as this can help you get the right diagnosis. You can do this by measuring and tracking the lump.

How to measure your lump

If your lump changes, gets bigger, becomes painful, or the skin over it becomes red or hot, contact your GP. Do not wait to measure it.

If your GP tells you to monitor and track your lump at home, you should:

• place a tape measure over the longest part of the lump
• write down the measurements
• take photos from the same angle each time.

If the lump is hard to reach, you could ask a friend or family member for help with measuring it.

When to measure your lump

You should measure the lump about once a month, unless your GP has asked you to do something different. You should also try to measure it at the same time of day every time. You could set a reminder or put it on your calendar for the same time each month to remind yourself to measure the lump.

You should also note any changes between months. Contact your GP if your notice any changes.

Going back to your GP

If you go back to your GP, they will examine the lump and might:

• decide there’s no need for further investigation
• ask to see you again after a short time
• refer you for further tests and investigation.

If you are referred, it does not mean that you have sarcoma. It means you need further tests to find out what the lump is. We have more information about what happens when you’re referred.

If you are worried about a doctor examining you, you can ask to see a specific doctor who you might be more comfortable with. You can also ask if you can bring a friend or family member with you to the appointment.

Speak to our Support Line

If you’re worried about sarcoma, you can speak to our specialists on the Sarcoma UK Support Line.