why do we itch when we heal
Placing a basic wound dressing around a wound can help prevent clothing from rubbing against and irritating the affected area. Even as children, people generally know that they re supposed to leave wounds alonePduring the
wound healing process. ItchingPcan further irritate sensitive skin, remove growing tissue, slow the recovery process and worsen scarring. However,Phealing woundsPcan sometimes become very itchy, tempting some to scratch the affected area. Read on to learn why itching occurs, how scratching can be harmful and ways to soothe thePirritation. Why does my wound itch? The skin contains specialized nerve fibers that detect when the dermis is being irritatedPand sendPsignals to the spinal cord, communicating that there is an itch. These nerves can be activated in several ways. For example, if a bug crawls on you, these fibers focus your attention on that area to warnPyou about a potential danger. According to the University of Cambridge, this is. Wound healing also elicits mechanical stress that activatesPitching. As it heals, the cells around the woundPproliferate, which means the margins around the wound grow and migrate inwards toward the base. In fact, the cells follow an electrical pathway at a voltage that is different than the margin so they can tell where the base is. The cells then unite at the center, attach together and contract to pull the wound shut.
This process creates a mechanical stress that activates the itch nerves and tells the spinal cord to scratch. These nerve fibers can also be activated by chemicals secreted by the body, which is how wound healing causes itching. As the University of Cambridge explains, the body releases histamine in response to the wound and its sudden exposure to outside elements as a protective function. Other factors can also add to the itching. As the AARP reports, during the recovery process, over the affected area. When too much of this tissue grows, it can form hard, smooth growths known as keloids, and these can irritate the skin, particularly when rubbed against clothing. Though they re generally not bad for one s health, they may lead to discolored skin after healing and can enhance scarring. Scratching a wound that is trying to heal can cause damage to the new tissue that has grown to replace and repair the damaged tissue. If this happens, it can slow the healing process, which leaves your body susceptible to wound infection longer and can result in excessive scarring. Additionally, it can cause potentially harmful bacteria on the hands to transfer to the wound, again putting you at a higher risk of developing infection.
If you re experiencing an excessively itchy wound accompanied with thick or off-colored drainage, you may want to see a clinician to ensure there isn t another problem. For normal irritation, there are actions you can take to reduce the itching, though you should check with a health care professional before changing your recovery plan. Discuss some of these options with your clinician: Wash gently with soap and water to remove any dead cells that may be causing irritation. Protect the affected area with a basic wound dressing to stop clothes from rubbing against it and to keep potentially harmful bacteria out. Use a cool compress for a short period of time to numb itching. Anti-itch creams may be used if the itching persists and becomes too much to handle. Why Do Wounds Itch? A wound may feel itchy, but this is a natural part of wound healing. When you experience a wound on your body, whether it s from injury, surgery or another cause, the body immediately begins the wound healing process. During recovery, it s important to be attentive of howPyour wound looks, smells and feels to keep an eyePout for infection or other complications. One thing that often alarms people is itching. However, in most cases, some itching at the affected area is normal. It has yet to be agreed upon by the medical community precisely what causes this irritation, but these are the two common explanations: Many believe the body naturally releases histamine in response to a physical trauma and the introduction of potentially harmful bacteria into the system.
As a natural itch-inducer, this histamine causes the affected area to become irritated through an allergic reaction. This substance is essential for wound healing, as it triggers cellular movement that helps develop new tissue and close the wound. According to The Naked Scientists, a BBC program run by researchers and physicians at Cambridge University, behind the itch. This theory says that here are nerve fibers in the skin specifically for making the body feel the sensation of its. During the proliferation stage, when the cells are flowing to the base of the wound and pulling the skin tighter inward, these nerve cells become stimulated. A wound that s closing up will feel itchy for mechanical and chemical reasons which are precisely the reasons why those nerve cells get stimulated in the first place, The Naked Scientists explained. While itching is a normal part of wound healing, scratching the affected area should be avoided. Additionally, if the itching is accompanied by soreness, redness or discharge, you may want to see a clinician.
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