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DeQuervain’s tenosynovitis is a painful inflammatory condition affecting the first dorsal compartment of the wrist, involving the abductor pollicis longus (APL) and extensor pollicis brevis (EPB) tendons. This condition is caused from the swelling and irritation of the tendons involved in thumb and wrist movements. It results from repetitive strain or overuse, leading to thickening of the tendon sheath, causing pain and impaired tendon movement. Contributing Factors: A) Overuse and Repetitive movements: Frequent repetitive activities that use the hand and wrist, such as gaming, typing, lifting and gripping objects, gardening, lifting babies (lifting babies in radial deviation long periods of time), using tools, can irritate and cause inflammation of the thumb tendons. Increasing load and volume on the thumb tendons in short time frames can also lead to this condition. B) Trauma/Injury: An impact or direct hit to the thumb area can injure the tendons and cause subsequent inflammation of the area. Having previous wrist instability can also be a precursor to straining this region further. Treatment & Management: 1) Activity modification and Rest: Identifying aggravating factors and avoiding or reducing these will reduce irritation and minimise the cycle of excessive inflammation which can help with pain reduction and healing. 2) Cryotherapy: Utilising ice packs for 15-20 minutes every few hours or when very painful can alleviate pain and control inflammation. Make sure you wrap the ice pack in a damp towel or paper towel rather than exposing it to the skin directly. 3) Bracing: Using a thumb splica splint helps immobilise the thumb and wrist in neutral or slight extension. This helps support the thumb and allow it to rest and heal more efficiently and comfortably. 4) Medical: Starting with lower dosed over-the-counter non-steroidal anti inflammatories (NSAIDs), can help with the pain and excessive inflammatory components that are associated with these sprains. Second line treatments, if pain persists with the conservative approach failing, may see an individual being recommended to have a corticosteroid injection to acutely decrease the inflamed tendons. Referral to a hand specialist in these more persistent and complex cases for a custom splint or further management input may be necessary.5) Exercise rehab: Exercises that look to target to increase wrist and thumb strength and mobility. Exercises that also strengthen and focus to increase flexibility in surrounding muscles are important too. Specialised exercises such as tendon glides (gentle movements of the wrist/hand) can help mobilise the tendons in their sheaths to minimise compression and encourage normalised movements.