Every surgeon grows up by changing medications. Appropriate medication changes can alleviate patients' pain, while improper medication changes can cause serious consequences such as infections and non-healing wounds. Therefore, surgical dressing change is a basic skill for surgeons.

Concept of dressing change
Dressing change: also known as dressing change, used for trauma and post-surgical wounds, infected wounds, body ulcers and sinus tracts, etc., including inspection of the wound, cleaning the wound, removing pus, secretions and necrotic tissue, covering the dressing . It is an important surgical operation to prevent and control wound infection, eliminate factors that hinder wound healing, and promote wound healing.
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Purpose of dressing change
1、Observe the wound condition and treat accordingly;
2、Keep the wound clean, remove foreign bodies and smooth drainage;
3、Reduce toxicity absorption and irritation;
4、Wet dressing to promote wound healing;
5, bandage to prevent wound damage and foreign infection.
Overall purpose: to promote tissue growth and wound healing.

Indications for dressing change
1、After observing and checking the wound;
2, Removal of stitches, loose extraction or replacement of drainage;
3, External dressing soaked with pus exudate or contaminated by foreign matter;
4, special wounds or wounds that are already infected or dehiscent.

Indications for dressing change
1、Wound removal;
2, Loosening or removal of drainage;
3、Wounds with bleeding or accumulation of blood, ooze, pus need to stop bleeding or removal;
4, Tension blisters on the affected limbs.
5, those who are suspected or already have wound infection, bleeding, or cracking, and those who open the dressing to observe the wound.
6、Preventing wound infection.
7. Those with foreign bodies or devitalized tissues that need to be removed;