Trading Pain for Numbness: What Recovery After Nerve Resection Surgery Really Looks Like

KEY TAKEAWAYS: Nerve resection surgery removes a severely damaged, expendable sensory nerve to relieve debilitating pain, with the trade-off being permanent numbness in the affected area. While the incision usually heals within two to three weeks, pain and sensation changes may improve immediately or take weeks to months—and occasionally up to a year—to stabilize. Most patients find the numbness worthwhile if their pain improves, but the procedure does not help everyone and can rarely result in worsening pain.  

Patients who are scheduled for a nerve resection almost always ask the same question: if the nerve is being taken out, what is left to heal? It is a fair question, and the answer is what makes recovery from this operation feel so different from recovery after a decompression.

Below, Dr. Eric H. Williams walks through the nerve resection surgery recovery timeline stage by stage, what shortens or lengthens it, and how the numbness that follows tends to behave over the first year.

What Nerve Resection Surgery Does—and Why Healing Follows a Different Path

Freeing a compressed nerve is treating a nerve that is felt to be “mostly normal”, but unhealthy enough to hurt.  We are trying to “wake the nerve up” and provide more oxygen to the nerve by removing tight bands choking it.   The nerve stays intact, and you wait for it to wake up.  

 A nerve resection, or removing a nerve, involves actually cutting and removing a part of the nerve.  Dr. Williams cuts the nerve above the damaged segment and then handles the healthy cut end deliberately—burying it in muscle, capping it, grafting it, protecting it, or redirecting it—in order to try to limit the ability of the living nerve ending to try to regrow and form a painful nerve ending called a “stump neuroma.”  This stump neuroma can be a major source of pain and is often the reason to operate on a patient in the first place.  Dr. Williams will use one of several techniques to try to prevent this from happening again.   Our overview of treatment for a painful neuroma after surgery describes those techniques in more detail.

When you cut a part of a nerve out to try to control pain, we are not wanting the nerve to regenerate along its old path and recovery, so the old adage that recovery could take “one-millimeter-a-day” that governs how quickly peripheral nerves heal after a decompression is not the same after nerves are removed.  Several different things are involved:

• The incision closing. Skin and soft tissue heal on their own schedule, and until that is well underway, activity limits after surgery have more to do with the wound and soft tissue healing than with the nerve.
• The cut nerve ending calming down. The relocated end is still living nerve tissue, and it can remain irritable and “raw” while scar forms around it, or as it is actively growing and trying to find “a new home.”  The upstream end of the nerve is still connected to the spinal cord and the nerve does what it is designed to do – regrow. Our goal as a peripheral nerve surgeon when dealing with patients who have pain is trying to control this in an advantageous way and take advantage of this while trying to protect the patient from the disadvantages of this.  Most of the strange sensations in the first few months after removing the nerves come from this delicate balance.   
• Much of the downstream nerve is still present in the body.  When a nerve is resected, typically only a portion of the nerve is removed.  Think of it as cutting out only a few feet of wire in a wall.  If someone wants to stop a light bulb from working, one can cut the wire anywhere in the wall and remove a small portion of the wire.  They don’t have to remove the entire length of the wire to make the light bulb turn off.   In the human body, that downstream nerve has a complex biology and many changes occur in that nerve once it is injured (either by accident or on purpose).   That nerve begins to degenerate and release proteins that may encourage other nerves to grow into the area and come “talk to it”.   This is why an area of numbness after nerve resection surgery will shrink with time.  Essentially, the injured non-functional nerve is calling its friends to help it and fill in the gaps.  We call that “collateral sprouting”.  This is typically experienced as a “burning” pain in the skin that is numb after the nerve has been removed.   The burning sensation has often been described as a rug burn, a sunburn, or sometimes a deep, achy bruise in the skin that is now numb.    
•  Your central nervous system has to adjust to a signal that is no longer arriving. After months or years of pain from that nerve, the brain may take time to learn to re-interpret the signals it is getting from the peripheral nerve.  This may explain some of the reason why some patients, especially those who have suffered with many years of severe pain may see improvement slowly in small steps rather than all at once.

It is important to point out that at this time, there are still things that we do not understand about pain and nerve surgery and recovery of the nerve and brain that continue to limit recovery in some patients. For instance, we still don’t have a good way to predict why some patients who are nearly identical in presentation to others don’t seem to respond to nerve removal, while others have an incredibly successful recovery.  There can be clues, there may be hints, but predicting the few that will not improve is very difficult.   

How Long Does Nerve Resection Surgery Recovery Take?

Most recoveries move through three broad stages.

Weeks One Through Three: Wound Healing

Numbness in the area the nerve served is usually present the moment you wake up. Soreness at the incision, swelling, and bruising are normal. Standard surgical wound care applies here: keep it clean, keep it dry until you are told otherwise, and elevate the area when you can.  Let the soft tissue heal; protect it from yourself and others.  

Weeks Four Through 12: The Cut End Settles

This is the stretch that surprises some people. A freshly cut nerve ending can send electric zaps, twinges, or hypersensitivity across the scar for weeks, even though the original pain is gone. Tapping over the buried end may produce a tingle. That is expected, not a sign the surgery failed, and it usually fades as scar tissue matures around the relocated ending.

This is what Dr. Williams calls the “Star Wars” phase. It's when you get little “laser” beams of sensation, and jolts firing across the universe.  It can be startling.  Typically, these jolts are very brief but can be intense.  Typically, they will settle down over several weeks, but sometimes it can take a few months.  Most of the time, this is very tolerable and less uncomfortable than the previous pain, but for a few, it can be pretty intense.     

During this time and even for years afterward, we tell the patients DON’T go looking for the ends of the nerves.  Let them be. Don’t look on purpose, and try not to “look for them” by mistake, and absolutely don’t let someone else “go look for them.” Don’t go get a massage or go to a physical therapist and allow someone to deeply press into the area of surgery as if they want to dig into your leg to look for the hidden nerve ending.  That is just a really bad idea.  We hid them for a purpose. Don’t go looking for them.   

During this time, desensitization work—gentle light touch with varied textures against the skin and scar, and gradual reintroduction of pressure—helps the area tolerate touch again. Progress is rarely a straight line, and a few flat weeks in the middle are common.  It's important to be patient and persistent. At this time, we particularly recommend aquatherapy for desensitization. 

This may mean:

• Walking in a swimming pool
• Sitting in the shower with water running over the affected body part
• Sitting in a whirlpool or jacuzzi
• Just running your hand under the water to get used to having it touched again

We believe that water therapy is one of the best ways for patients to desensitize their skin.  So, get creative and get in the water somehow, somewhere, in some way.

Six Months to a Year: The Final Picture

The numb patch is often smaller than it was at first, because neighboring nerves supply overlapping territory and gradually cover part of the gap, and other nerves simply start to grow in (remember that nerve growth factor we mentioned).   By this time, if not even before, many patients have seen very real and very dramatic reductions in the medications they have been taking. 

Unfortunately, despite our best efforts and those of others, not every patient sees the pain relief that they want.   Some patients will still have pain.  Some will form another stump neuroma that needs to be addressed again.  Sometimes we have to go look for another nerve that was missed.  Sometimes there is something upstream that needs to be taken care of, or something downstream, or another area.  And even more unfortunately, a small percentage of patients report that they can be worse after removing a nerve.  While these situations are uncommon, they are very distressing for the patient and the treating doctor.   Dr. Williams discusses that possibility before surgery.

When Can I Get Back to Normal Activities After Nerve Resection Surgery?

Your return to normal activities depends on which nerve was removed, where the surgery was performed, and how your incision is healing, and your current pain levels. 

• When can I shower? Many patients can get the incision wet about a week after surgery, but follow the instructions for your specific procedure.
• When can I walk and exercise? Walking may be possible relatively quickly after surgery around the knee or thigh. Foot surgery can take longer because every step puts pressure on the surgical area. Exercise should be increased gradually as you heal.  If the surgery is on the upper body, the head, or the neck, you are expected to be able to walk right away. 
• When can I drive? You should be able to comfortably and safely control the vehicle and should not drive while taking medications that impair your ability to do so, or if you are in too much pain and are distracted while driving.   If you can’t slam a brake pedal in an emergency, you can not drive. 
• When can I return to work? Desk work may be possible sooner than a job requiring prolonged standing, walking, or lifting. Your return depends on both the surgical site and the physical demands of your job.  Discuss this with your doctor. 
• When can I wear regular shoes? After a nerve resection in the foot, returning to normal footwear may take two to three months as swelling and sensitivity improve, but this also depends on where the nerve was removed and where the nerve was placed, where the scars are located, etc.  Talk to your surgeon about your specific concerns.

These are general guidelines. Dr. Williams will give you activity restrictions based on your procedure and how your recovery is progressing.

Variables That Can Change the Recovery Timeline

Two people can have the same operation and finish their recovery months apart. These factors usually explain the difference:

• Which nerve was removed, and where. A small sensory nerve in the thigh sits in soft tissue that is easy to protect. A branch in the foot has to tolerate weight, shoes, and every step you take.
• How long you were experiencing pain before surgery. Years of severe nerve pain can leave the nervous system sensitized, so the brain may keep broadcasting pain signals for a while after the source is gone.
• What was done with the nerve ending. Burial in muscle or bone, capping, and redirection into a nearby muscle, nerve grafting, creating a regenerative peripheral nerve interface, or targeted muscular re-innervation each have a slightly different settling period.
• Prior operations in the same area. Dense scar tissue from earlier foot or ankle surgery makes exposure harder and the recovery typically can be longer.
• Your general health. Maintaining steady blood sugar, not smoking, and having a healthy diet speed wound healing. Conditions that affect the nerves throughout the body, such as peripheral neuropathy, diabetes, and other medical illnesses, can complicate the recovery timeline.

Recovery by Location: Foot, Knee, and Thigh or Groin

After a Nerve Resection in the Foot

The need for weight-bearing makes the foot a demanding site for a nerve resection. Relief from the burning or shooting pain that made shoes unbearable is often the first sign of improvement, while comfort with prolonged standing takes longer. Swelling control matters here more than almost anywhere else, and a return to normal footwear is often a two- to three-month milestone rather than a two-week one.

After a Nerve Resection Near the Knee

Small sensory branches around the knee are frequently injured during joint replacement, and patients who already have nerve pain after knee replacement surgery usually arrive expecting some numbness. Kneeling on the numb patch can feel strange for months. Bending and walking typically come back quickly, since the removed branches carry sensation to the skin rather than muscle control.  However, as mentioned earlier, the odd sensations that occur around the knee respond differently for every patient.  

After a Nerve Resection in the Thigh or Groin

Sensory nerves in the thigh and groin can be removed with no loss of strength, which is why a neuroma resection is often a reasonable option in this region. Patients commonly describe a numb, slightly detached-feeling patch of skin that shrinks over the first several months. Sitting and driving comfort usually return within a few weeks.

What the Numbness Actually Feels Like

Where the nerve once supplied sensation to the skin, you will have an area with reduced or absent feeling. Most people describe it as a dull, padded patch rather than a total blank. It shrinks over the first year but rarely disappears. 

In areas that cannot feel injury, check the skin, avoid heat sources you cannot feel, and inspect the feet daily if the resection involved the foot. This is particularly important for anyone living with diabetes, as small wounds on the feet can become dangerous foot ulcers. 

How to Support Your Recovery After Nerve Resection

You are an active participant in your healing. Here are some steps you can take to support your recovery after nerve resection surgery: 

• Follow the post-operative instructions you were given, since they are written for your specific procedure.
• Start desensitization of the scar once you are cleared, and do it daily rather than occasionally.
• Eat for tissue repair—prioritizing protein and B vitamins—and stay hydrated.
• Keep a short daily note on pain level and function, so trends are visible at follow-up visits.

When to Call the Office

It is normal for the recovery process to feel like it has both good days and bad days, but a few things warrant a prompt call to our office: 

• Spreading redness, warmth, or drainage from the incision
• A fever
• An incision that opens
• A sudden, marked increase in pain instead of a gradual improvement
• New weakness or a loss of function you were not told to expect

Reporting these early lets us address small concerns before they become larger issues that could put your healing at risk.