The team studied 34 women between the ages of 19 and 45, who had suffered from constipation for five years or more.
The study group was then compared with women who had no history of constipation.
Each of the women completed a widely used general health questionnaire, which, among other things, tested for levels of anxiety, depression, somatic symptoms, and impaired social skills.
The women also completed psychological assessments to gauge how they felt about their femininity and their ability to form and maintain intimate relationships.
Rectal blood flow, which reflects the function of nerve pathways from the brain to the gut, was measured using a laser ultrasound technique.
The study findings were reported in the August issue of Gut.
Women with constipation had a worse score than the healthy women for the general health questionnaire.
They also felt less feminine, and found it harder to form close relationships, than the healthy women.
|Reduced rectal blood flow linked with:|
- bodily symptoms
- impaired social skills
- feeling "unfeminine"
Reduced rectal blood flow was found to be strongly associated with anxiety, depression, bodily symptoms, and impaired social skill scores, as well as feeling "unfeminine".
The higher the psychologically abnormal score, the lower the rectal blood flow was.
The authors conclude that a patient's individual psychological make-up alters the function of the involuntary nerves that link the brain to the gut.
Reduced activity of these nerves affects gut function, resulting in constipation in some people.