Overview

Vulvodynia is a condition of chronic vulvar pain with a duration of at least 3 months without a clear identifiable cause, which makes it an idiopathic condition. Vestibulodynia is a specific form of vulvodynia where pain is localised in an area near the vaginal opening called the vestibule.¹ The two subtypes of vulvodynia are provoked vestibulodynia (PVD) which is pain in the vestibule following provocation, and generalised vestibulodynia (GVD) which as the name suggests is the burning pain in the overall area of the vulva.² 

Early diagnosis and treatment may allow a greater opportunity for remission of the condition as it allows healthcare professionals to prescribe pain medication and provide advice on how to reduce pain and discomfort earlier on. Hence, preventing a longer duration of pain and stress if left untreated.

Diagnosis

The diagnosis of vestibulodynia includes a thorough assessment of medical history and symptom assessment. The patient’s medical history and clinical assessment inquired may include the following: 

• Sexuality: inquiry regarding the patient’s sexual life is usually asked. These questions would include whether or not they have a new partner or their general sexual habits. 
• Pain characteristics: the time since onset of pain including details of its frequency, duration, and temporal patterns. 
• Musculoskeletal history: past injury or falls that may cause vulvar trauma.
• Bowel/bladder function history 
• Mental health: signs of stress, anxiety, depression or even childhood trauma relating to sexuality
• Comorbidity: other diseases/conditions apart from vulvic pain
• Medication history: past/present medication or hormonal contraceptives

After these are inquired, different causes like neurologic or hormonal causes are investigated and ruled out. To rule out other causes, a vulvoscopy (procedure with a colposcope) is usually administered for assessment and to take biopsy samples. Some factors to rule out are: 

• Infections: of the vulva which may include conditions like vulvovaginal candidiasis or genital herpes
• Inflammation: like contact dermatitis of the vulva
• Neoplastic disorders: Disorders that involve the growth of a tumour (neoplasm) like squamous cell carcinoma
• Neurologic disorders: like nerve injury and neuropathy. It is important to note that the vulva is innervated by many different nerves, making it extremely sensitive, hence the pain could likely be due to neurologic disorders. 
• Vulva trauma: like straddle injuries or female genital cutting
• Hormone imbalance: like oestrogen

Diagnostic tests of biopsy samples would be taken to the lab for further investigation. Vaginal discharge may be swabbed and taken to measure pH and for microscopic examinations. 

A physical examination such as a gynecologic examination is a common procedure that could be administered to patients with vestibulodynia.³ The gynecologic examination may include the following procedures: 

• Cotton swab evaluation: Use a cotton swab to find the localised area of pain around the external genitalia
• Neurosensory evaluation: cotton vs pinprick sensation, and also rating and describing the different types of possible pain felt
• Vulvalgesiometer: standardised pressure onto genitalia to measure the pressure-pain threshold
• Tampon test: an alternate option for measurement of coital pain
• Pelvic floor excursion testing: assesses pelvic floor muscle coordination which involves measuring the muscle's ability to relax 

Treatment approaches

As vestibulodynia can be a complex condition, it is important to approach treatment in a multidisciplinary sense, and also with care towards preventing further worsening of the condition. 

Pelvic floor physical therapy could be suggested by healthcare professionals to strengthen the pelvic floor. The pelvic floor of individuals assigned female at birth (AFAB)plays a significant role in bladder and bowel functions, along with sexual functions. According to a book regarding myofascial pain and dysfunction, pelvic floor physical therapy can include the release of myofascial trigger points in the internal transvaginal and transrectal area which allows rehabilitation.⁴ Stretching and pelvic floor-specific exercises can also allow movement and release of restricted nerves in the pelvic floor. 

Behavioural therapy can also be used to mitigate pain in the emotional aspect. Cognitive-behavioural therapy (CBT) could be suggested to regulate thoughts and emotions related to genital pain. It can result in the patient with less pain catastrophizing, and significant improvement in sexual functioning.⁵ According to a study done on vestibulodynia participants who were randomly assigned with varying treatments including CBT, the researchers found that the patients who received CBT for 6 months had shown a significant decrease in pain during sexual intercourse.⁶ Regardless of decreasing pain during sexual intercourse, CBT can also be used to provide a sense of counselling and therapy to support the mental health of the patient with a non-invasive nature.⁶

Pharmacological interventions also play a significant role in recovery from the condition as it relieves pain and prevent further manifestation. Vulvodynia discomfort is frequently reduced by oral painkillers, such as anticonvulsants, serotonin-noradrenaline reuptake inhibitors (SNRIs), and tricyclic antidepressants (TCAs). Generally used at lower doses than for depression, TCAs such as amitriptyline and nortriptyline (preferred for their fewer side effects) dosage should be gradually increased to minimise negative effects. Anticonvulsants like gabapentin, pregabalin, lamotrigine, oxcarbazepine, and topiramate are also utilised, along with SNRIs like duloxetine and venlafaxine. Allergen-free topical drugs, such as compounded formulations of lidocaine, oestrogen, testosterone, and gabapentin, are applied directly to the vulva. ¹ 

Worse comes to worse, there are also surgical options for the patient, specifically for those suffering from PVD. A vestibulectomy is a surgical procedure that involves removing the vestibule, which is the area with the pain. It is a treatment option used when all other treatment options have not been effective. 

Patient education and lifestyle modifications

Open communication is essential for the effective management of vestibulodynia between patients and medical professionals. In order to provide individualised and flexible treatment strategies, patients should provide thorough reports of their symptoms, pain thresholds, and any changes. Encouraging patients to understand vestibulodynia, its causes, and the goals of treatment gives them a sense of empowerment and improves treatment compliance.

Both pharmaceutical and non-pharmacological methods are used in pain management. Patients need to be aware of how oral and topical drugs should be used as well as any possible negative effects. Pelvic floor physical therapy is one non-pharmacological method that can ease pain and relieve muscular tension. CBT is a type of behavioural therapy that can offer coping mechanisms for the psychological impacts of chronic pain.

Relationships and sexual health may be impacted by vestibulodynia. Sexual counselling provides techniques, including applying lubricants and switching positions, to sustain intimacy and sexual satisfaction even in the face of pain. Counselling also deals with psychological and emotional problems, lowering anxiety and enhancing communication between partners. Couples counselling or support groups might be even more helpful in managing relationship difficulties.

Regular follow-up sessions are necessary to review and adjust treatment regimens. During these visits, medical professionals should assess patients' pain thresholds, quality of life, and side effects from treatment. Monitoring makes it possible to respond quickly to emerging problems or worsening symptoms, which emphasises the significance of lifestyle changes and treatment compliance. Patients who receive ongoing psychological support are better able to manage the chronic nature of vestibulodynia and keep a positive mindset.

Summary

Vestibulodynia is a particular form of vulvodynia that is restricted to the vaginal vestibule. Vulvodynia is a persistent vulvar pain disease that lasts for at least three months without a known cause. Early diagnosis by a comprehensive review of medical history and physical examinations to rule out other illnesses is essential for effective care. A multidisciplinary strategy is necessary for treatment, involving medication such as TCAs, SNRIs, anticonvulsants, pelvic floor physical therapy, and cognitive-behavioural therapy (CBT). Topical drugs and, in more serious situations, surgical procedures such as vestibulectomy are also taken into consideration. Emphasising open communication with healthcare practitioners, comprehension of the disease, and regular follow-up meetings to monitor and alter treatment programmes, patient education and lifestyle modifications are critical. By addressing psychological effects, preserving sexual health, and managing pain, this all-encompassing strategy enhances results overall. Ongoing research provides optimism for better management and quality of life for vulvodynia sufferers by highlighting the potential for better results through early intervention tactics and breakthroughs in therapy alternatives.