Thumb tendon inflammation

A tendon inflammation of the thumb is a reaction of the tendon to overuse. The tendon is damaged and irritated. As a result of this irritation, the tendon swells and moving the thumb becomes more difficult and painful.

What causes a tendon inflammation of the thumb?

A tendon inflammation of the thumb often occurs due to overuse of the muscles around the thumb. The rise of smartphone technology presents a rapidly increasing risk of hand injuries. The thumb is particularly vulnerable to overuse due to repeated movements.

Other possible causes of a tendon inflammation of the thumb are underlying conditions such as De Quervain's disease or rheumatoid arthritis.

What are the symptoms of a tendon inflammation of the thumb?

With a tendon inflammation of the thumb, pain on the thumb side of the hand is the most common complaint. The base of the thumb may also look red and/or swollen. Due to this swelling, the thumb may feel warm and movement is often limited.

Using the thumb will be made more difficult in the case of a tendon inflammation. Even holding a pen between the thumb and index finger can be experienced as painful.

How is the diagnosis of a tendon inflammation of the thumb made?

Because of the characteristic signs, a tendon inflammation of the thumb is - in most cases - easy to recognise by the GP or physiotherapist. A physical examination, possibly supplemented with specific tests, will suffice to establish a tendon inflammation.

In case of doubt, the GP can consider having imaging carried out. An ultrasound scan will provide sufficient additional information for the diagnosis of a tendon inflammation of the thumb.

How is a tendon inflammation of the thumb treated?

Depending on the severity and duration of the inflammation and your medical history, a conservative (non-surgical) treatment will be chosen first.

It is important to reduce the load on the thumb tendons where possible; for this, it may be advisable to wear a thumb splint.

It is important to start yourself by taking sufficient rest and reducing movements that provoke the inflammation. That reduces the inflammatory signs. After that, it is important to strengthen the thumb muscles again. To train this gradually, it is advisable to do this under the guidance of a physiotherapist.