Call your surgeon promptly if you develop a fever after meniscus surgery, especially if your temperature reaches 100°F (38°C) or your discharge instructions set a lower threshold. Seek same-day advice for chills, worsening knee pain or swelling, spreading redness, warmth, or fluid from an incision. A fever with trouble breathing, chest pain, confusion, or feeling very unwell needs emergency medical care. Do not wait for every symptom to appear.
What temperature should prompt a call after meniscus surgery?
A temperature of 100°F (38°C) or higher is a reason to contact your surgical team after meniscus surgery. MedlinePlus guidance on meniscus tears and aftercare specifically advises contacting your healthcare provider for a fever at or above this level following surgery. Your surgeon may give you a different temperature threshold, so follow your discharge instructions and ask your care team if you are unsure.
Do not rely on the temperature reading alone to decide whether to seek help. Even if your temperature is below the threshold in your instructions, contact your surgeon if you develop chills, feel unusually unwell, or notice new or worsening symptoms around your knee. A fever can be associated with an infection or another problem that needs medical assessment.
Which symptoms alongside a fever are concerning?
After meniscus surgery, some pain, stiffness, and swelling around the knee can occur during recovery. However, changes that are new, increasing, or different from your earlier recovery deserve attention, particularly when they appear with a fever. The NHS guidance on arthroscopy identifies fever, feeling hot or shivery, increasing joint pain, abnormal wound discharge, and significant redness or swelling as reasons to seek urgent medical advice after the procedure.
Contact your surgical team promptly if you experience any of the following. These are examples of warning signs, not a checklist that can confirm or rule out an infection.
- Increasing knee pain: Pain that is getting worse rather than gradually improving, or pain that is not responding as expected to your prescribed pain relief.
- New or spreading redness: Skin around an incision or the knee becomes increasingly red, warm, or swollen.
- Changes in the incision: Fluid or pus-like drainage, an unpleasant-looking discharge, or a wound that appears to be opening.
- Chills or shaking: Feeling unusually cold or experiencing shaking chills, even if you have not recorded a high temperature.
- Marked swelling: Swelling that increases noticeably or occurs alongside worsening pain or warmth.
- Calf pain or swelling: New pain, tenderness, or swelling in the calf, which needs prompt assessment for a possible blood clot.
The U.S. Centers for Disease Control and Prevention (CDC) lists fever, redness or pain around a surgical site, and drainage from a surgical wound among the signs that warrant immediate contact with a healthcare professional. You do not need to wait until several signs appear together before asking for help.
When is fever after meniscus surgery an emergency?
Some symptoms require emergency medical assessment rather than waiting for a routine appointment or a callback from the surgeon. Seek emergency care immediately if you develop sudden or significant difficulty breathing, chest pain, coughing up blood, or fainting. These symptoms may be associated with a blood clot that has travelled to the lungs, a complication that requires urgent treatment.
MedlinePlus information on pulmonary embolism identifies shortness of breath, chest pain, coughing up blood, and lightheadedness or fainting among possible symptoms. Recent surgery is one factor that can increase the risk of a blood clot. Do not assume these symptoms are simply part of postoperative recovery, even if your knee incision looks normal.
A fever accompanied by rapidly worsening symptoms, severe shaking chills, or feeling seriously unwell also warrants urgent medical assessment. If you cannot reach your surgical team promptly, go to an emergency department. Use your local emergency number for breathing difficulty, chest pain, fainting, or other symptoms that may threaten life.
Can fever be a sign of infection after meniscus surgery?
Yes. Fever can be associated with an infection following surgery, including an infection involving the incision or tissues around the knee. An infection may also be accompanied by increasing pain, warmth, redness, swelling, or abnormal drainage. However, a fever by itself does not establish that an infection is present, and the appearance of a wound cannot reliably determine whether deeper tissues are affected.
Meniscus surgery is commonly performed using arthroscopy, a procedure in which a surgeon uses a small camera and instruments inserted through small incisions. Although this technique generally has a lower complication burden than more extensive open surgery, infection remains a possible complication. The Cleveland Clinic's knee arthroscopy information identifies infection among the potential complications and advises contacting a healthcare professional for fever, wound drainage, or worsening pain after surgery.
A healthcare professional may ask when the fever began, how it has changed, whether you have noticed wound changes, and whether your knee pain or swelling is improving. Assessment may include examining the incision and knee, reviewing your medical history, and deciding whether further tests are needed. If an infection is suspected, the next steps depend on the findings and the type of infection being considered.
Does it matter how many days have passed since surgery?
Yes, the timing and pattern of symptoms provide useful information, but there is no single postoperative day when fever is automatically harmless or automatically a sign of infection. A new fever shortly after surgery should not simply be dismissed, and a fever that begins several days later also deserves attention. Report a fever that persists, returns after settling, or appears alongside new symptoms.
Keep your discharge paperwork nearby because instructions can differ depending on whether you had a meniscus repair or a procedure to remove or trim damaged tissue. Your activity restrictions, wound care, and recovery plan may also differ. If the instructions do not clearly explain what to do about fever, contact the surgical team rather than waiting for your next scheduled visit.
What should you do while waiting for medical advice?
Contact the surgeon or the postoperative number provided by the hospital. Explain that you recently had meniscus surgery and have developed a fever. If your surgical team cannot be reached and you have concerning symptoms, seek urgent medical assessment rather than delaying care.
While arranging advice, these steps can help you provide useful information and protect your healing knee:
- Measure your temperature with a thermometer and note the reading, the time, and how it was measured.
- Write down when the fever began and whether it is rising, falling, returning, or staying about the same.
- Describe any new knee pain, swelling, redness, warmth, drainage, chills, or other symptoms.
- Keep track of your medicines, including any doses taken for pain or fever, and follow the instructions you were given.
- Keep the incision and dressing cared for according to your discharge instructions. Do not remove the dressing or apply creams or other products unless your surgical team has advised you to do so.
- Continue to follow your prescribed movement, weight-bearing, and wound-care restrictions while waiting for guidance.
Do not start leftover antibiotics, change prescribed medicines, or delay a call simply because a fever falls after taking a fever-reducing medicine. Tell the healthcare professional what you took and when. If emergency symptoms develop, seek emergency care rather than spending time collecting this information.
What happens when you contact your surgeon?
The surgical team will use the temperature reading, the timing of your symptoms, the type of meniscus procedure, your recovery so far, and your medical history to decide how urgently you need to be examined. They may ask about the appearance of your incisions, changes in pain or swelling, and whether you have experienced chills or other symptoms.
Depending on the information provided, the team may recommend an examination that day, assessment in an emergency department, or another specific next step. If infection is a concern, additional testing may be needed. The appropriate treatment depends on the cause and the findings; antibiotics or further procedures are not automatically necessary for every postoperative fever.
The most important step is to report a fever promptly and follow the advice of the team responsible for your operation. Early communication helps them decide whether your recovery needs closer assessment and whether any action should be taken.