Meniscus suture 40 days after the pain has not disappeared, may be the damage has not yet fully recovered is a normal phenomenon, may also be the second injury is not normal phenomenon. 1. Normal phenomenon: after meniscus suture surgery, it usually takes 2~3 months for the meniscus to fully recover, 40 days after the surgery, the meniscus may not have fully recovered, so there is pain, which is a normal phenomenon, you can take non-steroidal anti-inflammatory drugs, such as diclofenac sodium delayed-release tablets for anti-inflammatory pain, and so on, until the recovery of meniscus injury pain can disappear. 2. Abnormal phenomenon: If there is no sufficient rest after the surgery, the affected limb is overloaded too early, and there is a second injury to the meniscus, there may also be knee pain, and you need to improve the magnetic resonance examination to observe whether there is a second injury to the meniscus. If the pain has not disappeared 40 days after the meniscus suture surgery, it is recommended to consult the doctor in time and improve the relevant examination. Under the guidance of the doctor to use medication.