Hi,
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Vaginal pain or pelvic pain can be due to infection, inflammation, pelvic congestion, presence of hemorrhoids, etc. Visit your doctor/gynecologist for a thorough examination and further investigations (if needed) to identify the cause for your symptoms and get started on appropriate treatment soon.
If infection is detected, and if you are sexually active, get your partner also treated simultaneously to prevent chances of re-infection.
Take care.