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Apply soframycin ointment over affected area twice a day. Sanjeev Kumar Singh. A small cut can be treated with basic first aid for cuts: 1. Wash your hands. Put a bandage or clean piece of cloth over the cut to stop any bleeding. Use clean water to wash out the cut. Clean the area around your cut with soap. Use an ointment with antibiotics to moisten the area around the cut.


Use a bandage or gauze dressing with medical tape to cover the cut. Change the bandage or dressing once daily. Larger cuts may take a week or more to heal. Figure 3. Genital wound repair is influenced by moisture, hormones, biomechanics, microbial environment and specific skin morphology that differs from skin of other body parts. As stated above, genital tissue is highly responsive to hormonal cues and changes.


Oestrogen insufficiency is the major cause for menopausal skin symptoms such as dryness, decreased elasticity and hydration. Oestrogen deprivation is followed by a decrease in tissue thickness and elasticity, and a decrease in wound healing and scar formation [ 18 ].


Regarding genital changes, mucous membranes of small labia and vaginal tissue react with dryness and atrophy on low oestrogen levels [ 19 ]. Topical oestrogen application was successful in reversing atrophic changes of genital tissues [ 18 ]. Despite constant commensal colonization of genital skin and an absent cornified layer as a potent barrier against microbial penetration, most genital wounds heal quickly and uneventfully.


Communication with colleagues from gynecology or urology mirrors our observations from genital reassignment or aesthetic genital surgery. In contrast to skin of other body parts, genital wound healing is characterized by initial swelling with fast resolution and by almost invisible scarring [Figure 4]. Figure 4. Clinical examples for genital scarring in male and female genitalia. A: almost invisible scar after circumcision. It is a well-known fact that wound healing is promoted by a moist environment - present on mucous surfaces.


Furthermore, inapparent scarring might be due to the fact that abundant elastic fibers are present in genital skin compared to normal skin and to the absence of tissue tension due to lack of fixation to underlying bone or cartilage.


The disadvantage of the absent attachment to skeletal structures of genital skin is its tendency to shrink when a chronic inflammatory stimulus is present [Figure 3]. Surfaces of mucous epithelia are inhabited by a microflora that differs from normal skin as well. Despite the missing cornified barrier and abundant commensal habitation, genital infections are rare as in the oral cavity but in the event of bacterial penetration, infections can be disastrous with high mortality.


Constant exposure to commensal microbia is reflected by differential cellular immune responses with higher expression of antimicrobial peptides AMPs and defensins. The immune response and resolution are fast with conversion of M1 to M2 macrophages and reduced expression of pro-inflammatory cytokines [ 15 ].


In summary, the reduced inflammatory response of mucosal epithelia to injury ensures fast wound closure. Many different substances are in use for penile enlargement, e. A chronic inflammatory reaction due to foreign bodies was followed by granuloma formation, infections, swelling, and local tissue necrosis [ 21 ]. Polymethylmethacrylat microspheres, autologous fat or silicone implants are approved in certain countries for penile enlargement surgery [ 22 , 23 ].


The placement of permanent, alloplastic foreign body material in an environment populated by a variety of commensal microbes is risky due to the inherent danger of infection. In case of granuloma, tissue necrosis or implant infection, the foreign material must be removed with subsequent tissue loss.


Of note, tissue shrinkage occurs in the subcutaneous compartment rather than in the penile shaft skin. Lichen sclerosus et atrophicus LSC is the most common chronic dermatitis of the genital skin which leads to fibrosis and tissue shrinkage and atrophy.


Autoimmune responses govern the histological appearance with epidermal atrophy, hyalinization of the upper dermis and immune cell infiltrate. In patients with chronic disease, sclerotization of the tissue is found [ 24 ].


LSC is found in females and males with a ratio of up to with increased occurrence in pre-pubertal and post-menopausal women. In men, LSC is the most common cause of acquired phimosis [ 25 ] and affects the glans and the prepuce. In chronic disease, these atrophic lesions can lead to a complete destruction of the vulva with shrinkage of the small labia and narrowing of the vaginal entrance.


Another related dermatosis, the Lichen planus, presents with similar symptoms and aetiology which makes the initial differentiation between Lichen sclerosus and Lichen planus difficult [ 27 ].


Abundant of knowledge is available regarding normal and pathological wound healing and scarring of skin tissue from the whole body except for the genital skin. Because the genital area is generally considered as embarrassing, patients rarely contact gynaecologists, urologists or plastic surgeons for reconstructive measures.


If so, little expertise is present as reflected by the sparse literature available on genital wound healing and scarring. Interestingly, hypertrophic scarring to the genitalia is uncommon even when dark skin types are considered.


After circumcision or aesthetic labia reduction, almost invisible scars are the result. This phenomenon is explained by genital skin biomechanics and morphology with three key characteristics that are eminent to genital skin, namely: 1 lack of skeletal support and reduced tissue tension; 2 abundance of elastic fibers; and 3 presence of superficial cutaneous fasciae, e.


Bone and cartilage are part of skeletal structures that provide anchorage for muscles, tendons and other connective tissue structures with the skin spanning over all tissues as outer barrier.


Hence, intact skin has an intrinsic, physiological tension which is released after full-thickness incisions or trauma and is visible as gaping wound edges.


The human genitalia are not supported by a skeletal framework, and thus genital biomechanics differ from other body parts. The skin is loose and highly flexible - important characteristics for fast volume changes during sexual intercourse or child birth.


Abundance of elastic fibres in genitalia is the prerequisite for tissue elasticity that is required for volume changes during erection. Elastic fibres are located to the Dartos fascia that is found beneath the dermis, reminiscent of the carnosus muscle found in fur bearing animals. In humans, the platysma muscle of the neck, palmaris brevis in the hand and the Dartos fascia belong to the panniculus carnosus.


In pathological conditions such as buried penis or hypospadias, a significant reduction of elastic fibres and tissue elasticity is found in the Dartos fascia [ 29 ]. Furthermore, chronic genital inflammatory conditions such as LSC are characterized by decreased elastic fibres, tissue fibrosis and atrophy [ 25 , 30 ]. Our data show that the morphology of genital skin differs to skin from other body sites by having a thin epidermis and no fat tissue, but instead displaying a superficial cutaneous fascia Dartos fascia in men or Colles fascia in women with abundant elastic fibres.


In plastic surgery, tension-free wound margins are mandatory for unimpaired wound healing with almost invisible scarring. Lack of skeletal anchorage, highly elastic skin and abundance of tissue are advantageous for acute wound closure of genital skin.


Interestingly, almost no scarring is found after routine circumcision in men [ 31 ]. After traumatic skin loss of about half of the scrotal sac, the defect can be closed primarily with the remaining scrotal tissue [ 8 , 32 ]. Furthermore, abundant genital tissue provides the means for various local flaps which are commonly used for scrotal and penile reconstruction [ 33 , 34 ] or gender reassignment surgery [ 35 ].


The importance of hormones on cutaneous repair is well established [ 10 ]. Unfortunately, most studies used skin tissue from non-genital body areas with no information on performance of genital skin in wound repair.


Genital skin possesses the whole armamentarium to synthesize its own sex hormones [ 36 ] and an abundance of corresponding receptors to stimulate repair processes [ 15 , 37 ].


During aging, hormone levels decrease and the cytoprotective effect of oestrogens ceases [ 38 ]. Increased inflammation due to inflammatory cell recruitment, matrix metalloproteinase secretion and tissue degradation with subsequent loss of extracellular matrix are the cause for generalized tissue atrophy including genitalia with loss of elasticity [ 15 ].


In post-menopausal women, oestrogen deficiency is followed by vulvar and vaginal dryness and atrophy that can be - in part - reversed by local or systemic hormone replacement therapy [ 39 ]. Chronic inflammatory diseases such as LSC lead to tissue fibrosis with epidermal thickening and to a shrinkage and atrophy with complete tissue destruction of the outer genitalia in the long-run.


Interestingly, excessive scarring is rarely found in genitalia but atrophy and shrinkage is. In contrast to the genital skin, hypertrophic scarring and scar contractures are frequently seen after trauma or burns in body areas adjacent to the genitalia, e. A novel and seemingly successful approach to tackle LSC in women was published by Italian gynaecologists who used autologous lipofilling for vulvar atrophy [ 40 ].


Fat grafts are known for their pain-reducing and anti-inflammatory properties [ 41 , 42 ]. Aside from immunological effects, the fat graft restores the volume of vulvar structures and changes biomechanics as well [ 43 , 44 ]. The presence of mucous epithelia characterizes not only genital skin but also the oral cavity. As stated above, little data is available on genital mucosal wound repair but abundant knowledge on oral mucosal cell behaviour is, which might be comparable for both body parts.


Like oral wound repair [ 45 ] , genital wounds heal faster, with less scarring and faster resolution of the inflammatory response compared to normal skin [ 46 ]. An important observation was the diverging angiogenesis between oral and normal skin. Oral wounds develop less but functional vessels for wound tissue revascularization in contrast to abundant immature capillaries in granulation tissue of normal skin [ 47 ]. Unfortunately, no data is available on angiogenesis in genital wound repair.


Faster wound repair of oral keratinocytes was attributed to higher proliferation rates, faster migration and independence from paracrine stimuli by underlying connective tissue cells [ 48 ]. Seemingly, the epithelial response to injury governs the local inflammatory reaction and subsequently scar formation by the underlying dermal tissue. Further research on genital tissue is needed to verify if findings from the oral cavity correspond to genitalia as well. Barrier epithelia are constantly exposed to the commensal microbial flora and elicit differential immune responses to continuously present bacteria in contrast to localized infections.


Moreover, genital epithelia face exposure to foreign microbia during sexual intercourse. AMP such as defensins belong to the epithelial repertoire of antimicrobial defence mechanisms [ 50 ] and are physiologically secreted at low levels for protection against the commensal flora [ 51 ].


Bacterial infection with depletion of the indigenous microbial population initiates the secretion of proinflammatory mediators with increased and differential AMP expression in the female reproductive tract [ 51 , 52 ]. Includes delicious and healthy recipes for your meal plan. Words of Wisdom for Teens Volume 1 Download ebook.


And Maybe the World eBooks Textbooks. Una gu? Cool Mr. Men and Little Miss Online. Heart Attack? Food Poisoning Minor Wounds? And he and his colleagues have found, at least in spiny mice, that inflammation does not preclude regenerative healing. In the wild, these mice mount a strong inflammatory response yet still manage to regenerate skin. In , he and his colleagues showed that macrophages, immune cells that are a key orchestrator of inflammation that is typically associated with scarring, are also required for regenerative healing in spiny mice 6.


Now, the team is trying to determine which factors might tip macrophages and other immune cells away from scarring pathways and towards regeneration. A much larger mammal — reindeer Rangifer tarandus — is also providing insight into the regenerative potential of skin. Both male and female animals sprout new antlers each year. The downy velvet that covers the antlers as they grow is remarkably similar to human skin — thick with blood vessels, hair follicles and sebaceous glands.


But it differs in one important way. That capacity for regeneration seems to be inherent to the velvet. They hope that the comparison will help them to better understand the signals that prompt velvet to regenerate, and perhaps lead them to treatments that promote regeneration and prevent scarring.


Skin regeneration is still a distant goal, but several companies are working to bring wound-healing therapies to market. The spray-on skin system approved by the Food and Drug Administration earlier this year, and marketed as ReCell by biotechnology company Avita Medical in Valencia, California, is an example of an early success.


People with burns who require skin grafts typically receive pieces of skin that are harvested from unaffected parts of their bodies.


Surgeons take only the top layers of skin to create these grafts, which are known as split-thickness grafts.


Although split-thickness grafts can be cut into a mesh that covers an area about three times their size, ReCell can treat skin wounds that are 80 times larger than the donor piece of skin. ReCell can also be combined with meshed grafts to treat deeper burns.


More from Nature Outlooks. Gibson is testing an alternative treatment for burns, a skin substitute called StrataGraft. It comprises two layers of collagen: a bottom layer that is seeded with human fibroblasts and a top layer that is seeded with cells that give rise to keratinocytes.


One of the first clinical trials of StrataGraft, published in , showed that it did not induce an acute immune response 8 , and the substitute is now being tested in a phase III trial. Such therapies could be a boon for people with burns. Other companies are working on treatments for tricky-to-heal wounds, such as ulcers in people with diabetes or bedsores.


But the main goal of these treatments is to promote better healing, rather than to prompt skin to regenerate. However, she is optimistic that if clinicians who treat skin wounds collaborate closely with researchers who are working to understand scarring, the problem can be solved.


This article is part of Nature Outlook: Skin , an editorially independent supplement produced with the financial support of third parties.


About this content. Nishiguchi, M. Cell Rep. PubMed Article Google Scholar. Rinkevich, Y. Science , aaa Ito, M. Nature , — Plikus, M. Science , — Seifert, A. Simkin, J. Holmes, J. IV et al.