Stretch marks on the stomach
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Abdominal stretch marks, medically referred to as striae distensae, are linear atrophic lesions resulting from a disruption of the dermal structure. They most commonly develop during pregnancy, rapid growth, significant changes in body weight, or long-term exposure to glucocorticosteroids. They are not superficial "cracks" in the epidermis, but a type of scar associated with the disorganization of collagen, elastin, fibrillin, and other components of the extracellular matrix. Initially, they are usually red or purple in color, and then fade, taking the form of pearly-white, slightly depressed bands. Stretch marks are benign lesions and do not pose a health threat; however, they can affect self-esteem and quality of life. Available methods can reduce their visibility, but do not guarantee the complete restoration of normal skin.
Stretch marks on the stomach - what do they look like
The appearance of stretch marks depends primarily on their duration. Two main phases are distinguished:
- Red, pink, or purple stretch marks (striae rubrae) are early lesions. They take the form of parallel, sometimes slightly raised bands. Their coloration results from increased vascularity and the presence of an inflammatory process.
- White stretch marks (striae albae) are mature lesions. They become lighter than the surrounding skin, shiny, wrinkled, and usually slightly depressed. They resemble thin atrophic scars.
On the abdomen, stretch marks are most often arranged radially around the navel or transversely in the lower part of the abdominal wall. They can range in length from a few millimeters to several centimeters. They usually do not cause pain, although itching, a feeling of tension, or hypersensitivity may occur during the development phase.
Histopathological examination of mature lesions reveals thinning of the epidermis, flattening of the dermal-epidermal junction, and parallel, abnormally arranged collagen fibers. The network of elastic fibers is disrupted and disorganized. Stretch marks are usually diagnosed based on their appearance. However, extensive lesions that appear without an obvious cause require medical consultation, especially when accompanied by muscle weakness, easy bruising, hypertension, or metabolic disorders.
Stretch marks on the stomach - why they form
The development of stretch marks is the result of the interaction of mechanical stress, hormonal factors, and individual susceptibility of connective tissue. Skin stretching alone does not explain the entire process, as with a similar change in body circumference, stretch marks do not appear in everyone.
The most important contributing factors include:
- rapid increase in abdominal circumference, among others during pregnancy or significant weight gain;
- rapid weight fluctuations, which repeatedly alter the tension of the skin;
- genetic predisposition, affecting the properties of collagen, elastin, and fibrillin;
- hormonal changes, especially related to glucocorticosteroids, estrogens, and relaxin;
- long-term use of corticosteroids, topically or systemically;
- hypercortisolemia, occurring, among others, in Cushing's syndrome;
- less frequently, connective tissue diseases such as Marfan syndrome.
In skin affected by stretch marks, there is a decrease in the activity of fibroblasts—cells that produce extracellular matrix components—and an alteration in the expression of genes related to collagen and elastin. Mechanical stress acting on biologically susceptible skin leads to abnormal remodeling of its reticular layer.
The rapid or atypical appearance of wide, intensely purple stretch marks should prompt medical diagnosis. They may be a sign of excess cortisol or a consequence of the inappropriate use of potent steroid preparations.
Stretch marks on the belly - when do they appear during pregnancy
Pregnancy stretch marks, or striae gravidarum, most commonly appear towards the end of the second or in the third trimester, when abdominal circumference increases most rapidly. However, they can develop earlier, and their onset is sometimes preceded by itching and a sensation of skin tightness. The changes primarily affect the abdomen, but can also involve the breasts, hips, thighs, and buttocks.
Factors that increase the likelihood of their occurrence include:
- younger maternal age;
- a family history of stretch marks;
- the presence of stretch marks prior to pregnancy, for example after puberty;
- a higher pre-pregnancy body mass index;
- greater weight gain during pregnancy;
- high birth weight of the baby;
- multiple pregnancy and larger abdominal circumference.
Stretch marks do not indicate an abnormal course of pregnancy. After childbirth, their color gradually fades, but mature bands usually do not disappear completely. Treatments causing controlled skin damage, laser therapy, microneedle radiofrequency, carboxytherapy, and injection procedures are not performed during pregnancy. Planning treatment therapies should be postponed until after childbirth, tissue healing, and the stabilization of hormone levels. The safety of ingredients in products used during breastfeeding should be assessed individually by a doctor.
Stretch marks on the belly - how to prevent them
There is no method that reliably prevents stretch marks. A Cochrane review covering studies involving 800 women showed no high-quality evidence that creams or oils with vitamin E, cocoa butter, olive oil, hyaluronic acid, or other ingredients effectively prevent pregnancy stretch marks. Moisturizing cosmetics can reduce dryness, itching, and discomfort, but improving epidermal hydration should not be equated with protecting the deep structure of the dermis.
Rational prevention includes:
- maintaining as stable a body weight as possible outside of pregnancy;
- pregnancy weight gain consistent with the obstetrician's individual recommendations;
- a well-balanced diet covering the requirements for protein, vitamins, and minerals;
- regular, gentle skin moisturization to improve comfort;
- avoiding the unprescribed and chronic use of potent glucocorticosteroids;
- managing endocrine and metabolic diseases.
There is no convincing evidence that collagen supplementation, intensive massage, dry brushing, or specific oils prevent the formation of stretch marks. Retinoid products, including tretinoin, are contraindicated in pregnancy. Physiological weight gain should not be restricted solely out of fear of stretch marks, as proper nutrition for the mother and fetus takes precedence over aesthetic goals.
Stretch marks on the stomach - how to reduce old, white stretch marks
White stretch marks are mature atrophic scars with low vascularity and limited cellular activity. Their treatment is more difficult than treating fresh lesions. The goal of management is to narrow and shallow the bands, improve their texture, and reduce the contrast with the surrounding skin. Complete removal of stretch marks without skin excision is usually not possible.
The most biologically justified methods are those that induce controlled micro-injuries and secondary collagen remodeling:
- ablative and non-ablative fractional lasers create microscopic zones of thermal damage, between which undamaged skin remains to facilitate healing;
- hybrid laser combines ablative and non-ablative action;
- medical microneedling stimulates the healing cascade, fibroblast activity, and collagen synthesis;
- microneedle radiofrequency combines mechanical trauma with controlled heating of the dermis;
- combination therapies act on different components of the lesion, but must account for appropriate intervals needed for regeneration.
A 2024 meta-analysis indicates that microneedling may provide improvements comparable to laser therapy; however, studies differ in protocols, assessment scales, and follow-up periods. Currently, no method represents a universally recognized "gold standard." Results depend on the age and depth of the lesions, skin phototype, regenerative capacity, device parameters, and the number of sessions. The effect develops gradually over several months. In cases of very lax, excess abdominal skin after pregnancy or significant weight loss, abdominoplasty may be the only method that removes a segment of skin along with the stretch marks; however, it does not remove lesions located outside the excision area.
Stretch marks on the stomach - which treatment to choose
The choice of procedure should be preceded by a medical history interview and an assessment of the stage of stretch marks, their depth, surface area, skin phototype, tendency to discoloration, and coexisting laxity. Ambasada Urody's offer includes the following methods addressing stretch marks and scars on the body:
- ablative, non-ablative fractional laser, and hybrid laser: intended primarily for intensive remodeling of established lesions; the ablative method usually involves longer healing;
- 3D DeAge EX microneedle radiofrequency: acts thermally in the dermis and can be considered for deeper stretch marks and laxity;
- Pixel RF Microplasma: also affects the skin surface, which is why it can be chosen for uneven texture and tone irregularities;
- Dermapen 4.0, or microneedle mesotherapy: mechanically initiates the healing process and collagen remodeling;
- needle mesotherapy for the body, including collagen or tropocollagen, amino acid, and nucleotide therapy: mainly serves a biostimulating function and supports the improvement of skin quality;
- carboxytherapy: involves intradermal or subcutaneous administration of medical carbon dioxide; can support microcirculation and tissue remodeling;
- microdermabrasion: acts mainly superficially, which is why it has a supportive rather than primary role for white stretch marks;
- collagen sonophoresis: a non-invasive method aimed primarily at skin care and improving the condition of the skin surface;
- BeautyTek: bioelectric supportive therapy.
For old, deep stretch marks, the most reasonable starting point is usually fractional laser, microneedle radiofrequency, or medical microneedling. Mesotherapy, carboxytherapy, microdermabrasion, sonophoresis, and BeautyTek can serve a complementary role. Procedures should not be mechanically combined during a single visit. Excessive therapy intensity can prolong inflammation and increase the risk of discoloration, infections, and scarring. Particular caution is required for individuals with darker phototypes, active skin diseases, impaired healing, a tendency to form keloids, uncontrolled diabetes, or those taking medications that affect blood clotting.
