What Causes Pain at the Base of the Thumb?
May 16, 2022
Source: Cainiu Health
Dr. Xu Ge
Introduction
Gout: Typically presents with pain in the big toe. In acute gout, redness, swelling, and severe pain may also occur.
Rheumatoid Arthritis: Usually affects small joints—such as those in the fingers and toes—and rarely involves larger joints. It is characterized by recurrent episodes, along with redness, swelling, and intense pain.
Thumb Tenosynovitis: Patients commonly experience severe pain and an inability to flex the thumb.
There are many causes of thumb pain, with the following three being the most common:
1. Gout: Thumb pain is a typical symptom of gout. Gout commonly affects the metatarsophalangeal joint of the big toe (also known as the “bunion joint”), as well as the ankle and knee joints. Therefore, if you experience pain in the thumb joint, prompt medical evaluation is recommended. In acute gout, the affected area may become red, swollen, and extremely painful. Acute gout attacks often occur suddenly during the night, frequently waking patients from sleep due to severe pain.
2. Rheumatoid Arthritis (RA): Thumb joint pain may also be caused by rheumatoid arthritis. RA typically affects smaller peripheral joints—such as those in the fingers and toes—rather than larger joints. It is characterized by recurrent episodes, joint swelling, and intense pain. As the disease progresses, it can lead to progressive destruction of articular cartilage and bone, eventually resulting in joint deformity and functional impairment.
3. De Quervain’s Tenosynovitis (Thumb Tendon Sheath Inflammation): This condition can also cause thumb joint pain. Patients may experience severe pain and difficulty flexing the thumb. Importantly, this is not a fungal infection but rather an inflammatory condition affecting the tendons and their sheaths; it is usually effectively managed with appropriate pharmacotherapy.
