Experiencing a low-grade fever and persistent pain three weeks after explant surgery could potentially be signs of infection, although other factors could also be contributing to these symptoms. Here are some considerations:1. Infection: Infection is a possible complication following any surgical procedure, including explant surgery. Symptoms of infection may include fever, increased pain, redness, warmth, swelling, or drainage at the surgical site. A low-grade fever, along with ongoing pain, could indicate an infection, especially if other symptoms are present.2. Normal Healing Process: It's also important to consider that some degree of discomfort and pain is normal during the healing process after surgery. However, if the pain is worsening or not improving over time, or if you're experiencing other concerning symptoms like fever, it's essential to seek medical evaluation.3. Delayed Healing: Sometimes, certain factors can delay the healing process, leading to prolonged pain and discomfort. This could include factors such as underlying health conditions, inadequate wound care, or excessive physical activity during the recovery period.4. Other Complications: In addition to infection, other complications such as seroma (fluid accumulation), hematoma (blood clot), or tissue necrosis (death of tissue) could also cause ongoing pain and discomfort. These complications may require medical attention.Given your symptoms of low-grade fever and ongoing pain, it's crucial to contact your plastic surgeon who performed the explant surgery as soon as possible. They can evaluate your symptoms, perform a physical examination, and may order tests such as blood work or imaging studies to determine the cause of your symptoms and provide appropriate treatment.If you're unable to reach your plastic surgeon immediately, consider seeking medical attention at an urgent care center or emergency room, especially if your symptoms worsen or if you develop additional concerning symptoms such as high fever, severe pain, or signs of infection at the surgical site. Prompt evaluation and treatment are essential to address any potential complications and promote a successful recovery.