Dismiss Modal

Treatment

Treating Flexor Tendon Lacerations

Choose a preferred language

Your health care provider can tell if your flexor tendon is cut by examining your finger. If the wound is very deep, the finger may be X-rayed to make sure the bone isn’t damaged or that there are no foreign objects in the wound. If the flexor tendon is cut all the way through or significantly damaged, your provider may recommend surgery to rejoin the two ends of the tendon and repair any other damaged tissue. After surgery, you’ll need to follow a specific exercise program to regain movement in the finger.

Palm view of hand showing sutures repairing cut flexor tendon.


Your surgery

  • Your surgeon first exposes the cut tendon often with a zigzag-shaped incision.

  • Then they find the two separated ends and stitch them back together. In some cases, your surgeon may need to graft a new tendon to replace the cut one.

  • Nerves, blood vessels, and other soft tissue may also need to be repaired.

  • Surgery generally takes 2 to 3 hours. You may be given anesthesia to make you sleep, or only the hand and arm may be numbed. In either case, you feel no pain during surgery. You can usually go home the same day.


Starting your recovery

It could take up to 2 months until the repair heals and you are able to use your hand without protection. Your hand may be in a splint or cast for several weeks after surgery. This protects the tendon as it heals. You will probably start a gentle exercise program soon after surgery. Exercising your finger as directed by your health care provider or physical therapist is very important. Surgery creates scar tissue inside the finger. Without regular exercise, this tissue will stick to the tendon and the bone, which restricts motion. Then you won’t be able to bend your finger easily. As the tendon heals, you’ll slowly begin to strengthen the tendon and muscles, and move your finger more. Recovery usually takes 3 to 4 months. Often surgery does not return the finger to normal function. Sometimes your surgeon may offer a second surgery to remove or release scar tissue. 

© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
Man holding his knee over text

Orthopedics CTA

Find a Doctor
Related Articles
Read article
Orthopedics
After Hand Surgery

Instructions on how to take care of your hand after surgery.

Read article
Surgery
Wound Care After Surgery: Pain

It's normal to feel pain at the incision site. The pain decreases as the wound heals. Pain that continues more than a few weeks after surgery or pain that gets worse any time after surgery can be a sign of a problem.

Read article
Lung Health
Understanding Ventilators

A ventilator is a machine that helps a person breathe. If someone you care about is on a ventilator, you can find some answers to your questions here.

Read article
Orthopedics
Achilles Tendon Repair Surgery

Achilles tendon repair surgery is a type of surgery to fix a damaged Achilles tendon. Learn more about the surgery, including why you might need it, what the risks are, how to get ready for it, and what happens during and after the surgery.