We are using cookies to give you the best experience on our site. Cookies are files stored in your browser and are used by most websites to help personalise your web experience.

By continuing to use our website without changing the settings, you are agreeing to our use of cookies.

Find out more
You are here:
> > > > Acute CPP crystal arthritis

Acute CPP crystal arthritis

Doctor and patient talking

Acute CPP crystal arthritis (also known as pseudogout) is a type of calcium crystal disease. It occurs when calcium pyrophosphate (CPP) crystals deposit within the joints, which can cause sudden attacks of painful inflammation. Symptoms of acute CPP crystal arthritis include:

  • sudden pain and stiffness in affected joint (most commonly knee)
  • swelling and tenderness
  • red, inflamed skin over the joint
  • raised temperature
  • generally feeling unwell.

Treatment for acute CPP crystal arthritis can include a range of drugs, joint aspiration and injection, and lavage.

You can find more information about acute CPP crystal arthritis on our calcium crystal diseases pages.


0800 5200 520

Our new helpline: Call us for free information, help and advice on your type of arthritis. Open Mon–Fri 9am–8pm.

All calls are recorded for training and quality purposes

Virtual Assistant

Our new Arthritis Virtual Assistant uses artificial intelligence to answer your arthritis related questions 24/7.

Ask a question
For more information, go to
Arthritis Research UK fund research into the cause, treatment and cure of arthritis. You can support Arthritis Research UK by volunteering, donating or visiting our shops.