Vaginismus

One of the most common and most distressing descriptions of vaginismus is a burning sensation at or near the vaginal opening. Understanding why it feels this way can help make sense of an experience that is often confusing, and sometimes frightening.

The burning is not imagined. It has several distinct physical causes, and in most cases more than one is present at the same time.

When the pelvic floor muscles contract involuntarily, they tighten around the surrounding tissue and blood vessels. This restriction reduces blood flow and creates pressure on sensitive structures producing a sensation that can feel like cramping, heat, or burning, similar to the feeling of a muscle held in sustained tension.

The pelvic floor is densely innervated meaning it is supplied by a high concentration of nerves. When the muscles contract forcefully or remain in a state of sustained tension, they can compress or irritate those nerves directly, generating burning pain even in the absence of injury. This is explored in more detail in the nervous system article in this series.

When penetration is attempted against involuntary muscle resistance, the friction and force involved can cause minor irritation or small tears in the delicate tissue at the vaginal entrance. These microtears produce a stinging or burning sensation that can persist well after the attempt has ended.

Repeated muscle contractions and tissue strain can trigger localised inflammation the body’s protective response to stress or irritation. Inflamed tissue holds heat and becomes more sensitive to touch, which is experienced as a burning or raw sensation even when the area is not actively being touched.

Anxiety, fear, or past experiences associated with penetration can heighten how intensely pain signals are perceived. This is not a matter of “overthinking” it reflects how the brain and nervous system process threat. When the nervous system is primed for danger, pain signals are amplified before they are consciously registered, making the burning sensation feel more severe than the physical stimulus alone would produce.

Not all burning in this area is caused by vaginismus alone. Conditions such as provoked vestibulodynia, vulvodynia, yeast infections, or hormonal tissue changes can produce similar sensations and may occur alongside vaginismus. Because these conditions overlap in how they present, accurate diagnosis matters a GP or gynaecologist can help determine whether one or more conditions are contributing.