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It's like this ma friend,

In time, some collagen breaks down at the site of the wound and the blood supply reduces. The scar gradually becomes smoother, softer and paler. Although scars are permanent, they can fade over a period of up to two years. It's unlikely they'll fade any more after this time.

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Causes of slow wound healing it's like,

There are a number of things that can delay or complicate the healing of wounds, including: Diabetes mellitus. Low HGH (human growth hormone) Rheumatoid arthritis

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Most scrapes heal well with home treatment and do not scar. Minor scrapes may be uncomfortable, but they usually heal within 3 to 7 days. The larger and deeper the scrape, the longer it will take to heal. A large, deep scrape may take up to 1 to 2 weeks or longer to heal.

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How long does it take for a scab to heal?

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How long does it take for a scab to heal?

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Bagaimanakah luka terkoyak dapat ditutup dengan jahitan? Apakah proses yg berlaku ketika penyambungan luka tersebut?

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Wound healing can be delayed by factors local to the wound itself, including desiccation, infection or abnormal bacterial presence, maceration, necrosis, pressure, trauma, and edema.
Wound healing also can be delayed by systemic factors that bear little or no direct relation to the location of the wound itself. These include age, body type, chronic disease, immunosuppression, nutritional status, radiation therapy, and vascular insufficiencies.

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Saya nak tanya , kenapa parut luka mengambil masa yang lama untuk hilang ?

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Blood Clots : Plugging the Breaks

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type of wound

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Pyramid demonstrating the elements and progression of a rehabilitation program.

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primary and secondary healing

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Patient Considerations for Wound Healing

Influencing Factors
-Patient's age

-Vascular changes occur with increasing age, skin        is less pliable, and scar tissue is tighter.

-For example, an older adult’s skin tears more               easily from mechanical trauma such as tape               removal.

Patient’s nutritional status
-Tissue repair and infection resistance are directly       related to adequate nutrition.

-Patients who are malnourished are at increased          risk for wound infections and wound infection-            related sepsis.

-Patient’s size
-Inadequate vascularization due to obesity will              decrease the delivery of nutrients and cellular               elements required for healing.

-An obese person is at greater risk for wound               infection and dehiscence or evisceration.

-Oxygenation
-Factors such as decreased hemoglobin level,                smoking, and underlying cardiopulmonary                    conditions will decrease oxygenation.

-Adequate oxygenation at the tissue level is                    essential for adequate tissue repair.

-Hemoglobin level and oxygen release to tissues          is reduced in smokers.

-Patient’s medications
-Steroids reduce the inflammatory response and        slow collagen synthesis.

-Cortisone depresses fibroblast activity and                   capillary growth.

-Chemotherapy depresses bone marrow                       production of white blood cells and impairs                  immune function.

-Chronic diseases or trauma

-Chronic diseases and traumas such as diabetes         mellitus or radiation decrease tissue perfusion          and oxygen release to tissues.

Data source: Gallagher-Camden, 2012; Perry et al., 2014; Stotts, 2012

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What causes slow healing?

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Primary and secondary healing process.

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The stages of wound healing proceed: hemostasis, inflammation, proliferation and maturation

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This is the different between primary healing and secondary healing