What does wound healing mean that it is not healing as fast as it used to be?

There are many reasons for this, and here are a few of them.

1.Wound conditions: Severe tissue defects, edema at the base of the wound and its surroundings, excessive dryness of the wound environment, foreign body residue in the wound, and poor local blood in the wound will prolong the healing time of the wound accordingly.

2.Infectious factors: The wound and its surroundings are not cleaned in time, and the wound dressing is not changed in time, which is easy to cause bacterial and microbial invasion and secondary wound infection, forming purulent lesions and affecting the healing of the wound.

3.Local immobilization factors: insufficient local immobilization, excessive tension, and premature activity of the wound will aggravate the inflammation and exudation and affect the blood supply, and it is also very easy to damage the neogranulation tissue, resulting in delayed healing.

4.Age: As we age, the ability to regenerate tissues also declines, coupled with the decline in sebaceous secretion function, which can lead to dryness, resulting in reduced cushioning and defensive properties, which can delay wound healing.

5.Nutritional status: Wound healing is a process of increasing incremental consumption, and deficiencies in nutrients such as proteins, vitamins, and trace elements will delay wound healing.

6.Underlying diseases**: diabetes, immune system diseases, circulatory diseases, malignant tumors, etc., can affect wound healing.

7.Psychological factors: Psychological stress can affect the functioning of the neuroendocrine system and the immune system, slowing down wound healing.

8.Other factors: nursing factors (inappropriate dressing, such as wound dressing too tight, etc.), the use of local drugs (such as glucocorticoid-based anti-inflammatory drugs, immunosuppressants, cytostatics, anticoagulants, etc.), adverse environmental factors (such as exposure to ionizing radiation (radiotherapy), etc.), intraoperative factors (such as excessive use of electric knife at the intraoperative wound, too tight or too loose incision suture, etc.), all have a direct impact on wound healing.

When we age, the function of various organs in the body gradually declines, and blood circulation slows down, which can lead to slow healing of wounds. When the wound site is in an area with less blood supply, such as the meniscus of the knee, the wound also heals slowly due to the slower delivery of nutrients.

When a wound becomes infected, it can lead to an inflammatory reaction, causing a series of symptoms such as swelling and suppuration, resulting in slower wound healing. When the patient is malnourished, the lack of protein and vitamins necessary for wound healing can also lead to slower wound healing.

Nutritional status, in patients with hypoproteinemia and poor nutritional status, wounds heal much worse than well-nourished people, so the most important thing after surgery is to strengthen the patient's nutrition in order to promote wound healing. When the wound is co-infected, the natural wound cannot heal, and the wound can only heal after the infection is clear. Local blood vascularization disorders in wounds, such as lower limbs, are not as fast as head and neck wounds, and suture removal time should be prolonged if blood vascularization is poor in the wound.

There are also patients with diabetes, which will slow the wound healing. Oral hormones and immunosuppressants can affect tissue repair and wound healing.

Here are a few reasons.

One, as we age, our ability to heal decreases.

Second, whether it is co-infected with the disease, resulting in a decrease in healing ability.

Third, whether it is complicated with diabetes caused by difficult wound healing.

After the body is injured, the wound will bleed, but after a period of time, the wound will heal on its own, and the human body has a strong repair ability, which can repair the damaged tissues by itself, so why does the wound heal on its own? How does a wound heal on its own?

A common wound in life is the breakage of **tissues, if the wound is deep, not only will it be broken, but also the blood vessels and even muscles will be broken, and at this time it will bleed. Of course, if the injury is too severe, a fracture may occur. The wound mentioned here refers to the defect and rupture of the ** tissue.

As soon as the wound appears, the human body will quickly mobilize the white blood cells and platelets in the blood to reach the "disaster area", on the one hand, start the inflammatory response and eliminate the germs that take advantage of the deficiency; On the other hand, the coagulation reaction is initiated, and the platelets quickly gather at the wound to close the gap between ** and the blood vessels, and coagulate together with the blood and the fibrin in it, forming a blood clot and stopping the bleeding immediately. When the blood from the wound dries up, it forms a "blood crust", which acts as a temporary "firewall" to protect the wound tightly.

Within about 24 hours after the injury, the ** at the edge of the wound will also be mobilized rapidly, and the ** cells (called epithelial cells) in all directions will continue to grow from the bottom of the scab to the center of the wound. However, they also grow upwards and mature, eventually becoming completely normal'**。At this time, the ** at the wound will basically grow, and soon the blood scab will fall off, and the wound will be completely healed.

In this process, fibroblasts accumulate in large quantities at the wound site, producing new collagen fibers, etc., to fill the deep ** tissue defects caused by the wound and form scars. In general, the larger and deeper the wound, the more pronounced the scarring.

Wound healing is a very complex process, and there are many cytokines involved in it, and many factors influence it. If there is an infection with germs or other pathogens during the wound healing process, then it will heal very slowly and the scarring will be more noticeable. Therefore, if you are accidentally injured, you should first clean and disinfect the wound in time, and if necessary, you can apply some antibiotic ointment to the wound, which can effectively prevent infection.

Of course, if the injury is serious, you still need to go to the hospital for diagnosis and treatment.