Perineal scar

A perineal scar is a lesion that forms at the site of soft tissue damage within the perineum, most commonly as a result of vaginal delivery (episiotomy or perineal tear). It is the result of the healing process in which the continuity of the skin, subcutaneous tissue, and muscle structures is restored. Depending on the course of healing, the scar may be flexible and almost imperceptible or lead to functional discomfort, pain, and pelvic floor dysfunction. Its nature depends on many factors, including the quality of suturing, tissue regeneration, and postpartum care.

Perineal scar – how it is formed

A perineal scar is formed as a natural result of the repair process after tissue damage. It most commonly affects women after natural childbirth, during which the following may occur:

episiotomy – a controlled incision of tissues, perineal tear – a spontaneous injury of varying depth.

The healing process involves several anatomical structures:

skin, subcutaneous tissue, pelvic floor muscles, fascia (connective tissue structures that stabilize organs).

As a result of the injury, inflammatory and proliferative processes are activated, leading to the deposition of type III collagen, followed by its remodeling into more durable type I collagen. However, the reconstructed tissue never fully regains its original properties.

The quality of the scar is influenced by, among others:

suturing technique and the surgical material used, degree of tissue damage, blood supply to the perineal area, individual predispositions (e.g., tendency for keloids), hygiene and postpartum care.

Improper healing can lead to the formation of a hard scar, adhesions, or functional disorders.

Perineal scar – stages of healing

Healing of the perineal scar proceeds in several physiological stages that partially overlap:

1. Inflammatory phase (0–5 days)

activation of the immune system,
influx of inflammatory cells (neutrophils, macrophages),
cleansing the wound of microorganisms and dead tissue.

2. Proliferation phase (5–21 days)

fibroblast proliferation,
production of type III collagen,
formation of new blood vessels (angiogenesis),
wound closure.

3. Remodeling phase (from 3 weeks up to even 12–18 months)

reorganization of collagen fibers,
increase in mechanical strength of the tissue,
gradual flattening and lightening of the scar.

In the normal course, the scar becomes:

soft,
elastic,
hardly visible,
painless.

In the case of disorders, the following are formed:

hypertrophic scars,
adhesions,
areas of reduced or excessive sensitivity.

Perineal scar – symptoms of abnormal healing

Improper healing of the perineal scar can lead to both local and functional symptoms. The most common include:

Local symptoms:

pain or tenderness (especially during touch or intercourse),
feeling of pulling and tension,
thickening or hardening of the scar,
itching or burning,
redness or tissue asymmetry.

Functional symptoms:

discomfort while sitting,
pain during physical activity,
difficulty in returning to intercourse (dyspareunia),
sensory disturbances in the perineal area.

Complications:

adhesions of the scar with deeper layers,
restricted tissue mobility,
pelvic floor muscle dysfunction,
secondary tensions within the pelvis and spine.

Special attention should be paid to symptoms persisting for more than 6–8 weeks after childbirth, which may indicate the need for therapy.

Perineal scar and pelvic floor muscles

A perineal scar has a significant impact on the function of the pelvic floor muscles, which are responsible for:

supporting pelvic organs (uterus, bladder, rectum),
control of urination and defecation,
sexual functions,
trunk stabilization.

An improperly healed scar can lead to:

1. Excessive muscle tension

pain during intercourse,
difficulty in relaxing muscles,
a feeling of „tightness” in the vagina.

2. Muscle weakness

pelvic organ prolapse,
urinary incontinence,
lack of control over muscle tension.

3. Muscle coordination disorders

abnormal muscle function during exertion,
lack of synchronization between tension and relaxation.

A scar can also affect the fascia and muscle chains, which leads to remote symptoms – e.g. lower back or hip pain.

Therefore, the assessment of a scar should always include not only its appearance, but also the function of the entire pelvic floor.

Perineal scar – when it requires therapy

Not every scar requires intervention, but there are situations where therapy is indicated. These include:

Indications for treatment:

persistent pain,
pain during intercourse,
feeling of pulling or stiffness,
visible thickening or deformation,
symptoms of pelvic floor disorders (e.g., urinary incontinence),
lack of improvement after 6–8 weeks postpartum.

Modern therapy methods:

1. Urogynaecological physiotherapy

scar mobilization,
manual therapy,
pelvic floor exercises,
learning correct muscle activation.

2. Regenerative therapies

platelet-rich plasma (PRP) – stimulates regeneration and collagen remodeling,
mesotherapy – improves tissue quality and elasticity.

3. Laser therapy and radiofrequency

improvement of blood supply,
remodeling of collagen fibers,
increasing scar elasticity.

4. Injection therapies

preparations improving tissue quality,
reduction of tension and pain.

5. Surgical treatment (less common)

in the case of significant deformations or pathological scars.

In clinical practice, the best results are achieved by combining physiotherapy with regenerative therapies, which allows for the simultaneous improvement of tissue structure and function.