The most common reason for your fingers to lock up for a second is a result of trigger finger which is when the tendon that controls your finger cannot glide as smoothly as it should in the sheath that surrounds it.
The trigger finger or fingers locking up can occur if part of your tendon sheath become swollen or if a small lump forms which is called a nodule.
Losing mobility in your fingers can be a result of several different conditions such as dupuytren's contracture, arthritis, locked trigger finger, and various injuries.
There are treatments available to treat the conditions and help restore mobility in your fingers.
Hand weakness or "heaviness" can be caused by a number of conditions, such as carpal tunnel syndrome, a herniated disc, or osteoarthritis.
Experiencing any sudden hand weakness is concerning as it may be a sign of a stroke which is a serious medical emergency.
Stiff fingers often result from arthritis, but there are other causes.
Other causes of stiff fingers include tenosynovitis, which causes trigger finger, carpal tunnel syndrome, or an injury.
Stretching, home remedies, and medical treatment may help.
You may experience stiff fingers at a specific time of the day.