Itching in old wounds may be related to chemical irritation, scarring, and foreign body residue.
1. Chemical irritation: it may be that the wound came into contact with other chemicals in life, such as soap, washing powder and so on. They contain certain irritating properties that cause itching in the previous wounds.
2. Keloid hyperplasia: It is possible that the wound has developed a large amount of fibrous scar tissue hyperplasia. The proliferated scar will be higher than the surrounding normal skin, localized thickening and hardening. Usually the scar is irregular in shape, with localized redness and congestion, itching and pain.
3. Foreign body residue: It may be accompanied by foreign body residue when treating the wound. The appearance of the surface skin completely healed, but the foreign body will stimulate the subcutaneous granulation tissue itching discomfort.
Old wound itching can also be seen in other causes, it is recommended to consult a doctor in a timely manner, follow the doctor’s instructions for relevant examinations, with the help of the doctor to clarify the cause, and targeted treatment or treatment.