Let us first look at the etymological origin of this word. The prefix dys- expresses difficulty (from the ancient Greek δυσ-) and the suffix pareunie (Greek root pareunasthai) means coupling.
Dyspareunia therefore means difficulty during coupling.
This is a term used in both women and men. In women, two types of dyspareunia are distinguished.
Superficial dyspareunia
It refers to pain at the vaginal entrance or at the vulvar level (introital pain, vaginismus, vulvodynia, vestibulodynia).
Deep dyspareunia (pain in the vaginal canal and lower abdomen).
Deep dyspareunia is the 2nd most frequently reported symptom in people with endometriosis and is also the most characteristic (as it affects between 50 and 80% of patients).
This is a pain felt deep in the vaginal canal at the moment of thrust (during penetration). It can be positional — meaning it is only felt in positions that involve deep penetration (such as doggy style) — but it can also be felt after sexual intercourse.
Causes of dyspareunia:
Lesions close to the uterus and vagina
This pain is mainly due to the location of endometriosis lesions close to the uterus and vagina (LUS bladder, rectum, torus, ovaries, etc.). The uterosacral ligaments are the most common site of lesions in women with endometriosis. These ligaments, which hold the uterus to the sacrum, are put under strain during vaginal penetration as the uterus moves back and forth with each thrust.
Uterine contraction
Adenomyosis (usually defined as endometriosis internal to the uterus) can be responsible for post-coital and post-orgasmic pain. This is because, during arousal and sexual intercourse (with or without penetration), the uterus contracts under the effect of pleasure. This can cause pain in the lower abdomen, similar to period pain. Deep dyspareunia is the most difficult endometriosis symptom to manage, as only 30 to 40% of patients find relief through hormonal treatment.
Factors that can aggravate the pain: