Wound long hard lumps often have the following reasons: 1, infection, when the wound below the infection can appear hard lumps, need to go to the hospital as soon as possible to find the attending physician to check. If it is considered a mild infection, antibiotics can be given for treatment, commonly used drugs are cephalosporin antibiotics, or penicillin antibiotics. If the infection is more serious, then you can make an incision to remove the locally infected tissues, and then change the medicine regularly; 2, the lower part of the incision is caused by the rejection of the suture, because the suture is a kind of exogenous material, and the body will form a lot of granulation tissues for wrapping. If there is no obvious pain in the hard lump, there is no need to worry too much, if there is obvious pain, it may be necessary to remove the suture; 3, it may be caused by keloid hyperplasia, which can be treated with topical medication, or injected with medication to inhibit keloid hyperplasia if necessary.