Trigger Finger, causes and symptoms

 What are a trigger finger and a trigger thumb?

A disorder known as "trigger finger" affects the tendons in your thumb and fingers. You cannot easily bend or straighten your fingers because they become stiff. Your thumb and finger tendons glide through sheaths, which are tunnels in your palm. Trigger finger causes swelling and inflammation of the tendon or sheath, which impairs the tendon's ability to glide freely. This could result in your finger becoming stuck and bent.

What causes trigger fingers?

There are primarily two causes for this:

Repeated hand motions:

• grabbing and pinching repeatedly.
• occupations or interests
• Your thumb and finger tendons may become irritated if you use force when using your hands.
• sports activities such as tennis

Health issues:

• Diabetes
• Rheumatoid arthritis
• Gout
• Pseudogout
• Sarcoidosis
• Hypothyroidism
• osteoarthritis

trigger finger symptoms

• discomfort in your thumb or fingers
• sensitivity in your hand's palm
• A lump on the base of your thumb or finger
• Feeling like your finger is catching or locking when you bend it is the classic sign of a trigger finger. This happens because the inflamed tendon or sheath gets stuck within the tunnel.
• A popping sound or sensation may be experienced when your finger breaks free of its bent position. This happens when the tendon passes through the sheath without any resistance.

What happens if you don't treat a trigger finger?

Limitations in your hand use and persistent pain can negatively impact your quality of life by making it harder to enjoy pleasant activities and causing frustration. 
A physical therapist can design a rehabilitation program to improve the strength and flexibility of your hands and fingers, manage trigger finger symptoms, and prevent recurrence.