People with a TBI often experience changes to their sexuality after the TBI.

There are primary causes (eg injury to the brain) and secondary causes (eg stress) that bring about these changes.

There is a wide range of change between individuals.

Common changes to sexuality after TBI

Lower sex drive

Lower sex drive
Up to 41% of men report having a lower level of sex-drive after TBI. Only 15% report having an increased or greatly increased sex-drive (Ponsford, 2003). Up to 33% of women reported that they had a lower sex-drive after the injury.

Decreased frequency

Up to 54% of both men and women report that they had sex less often than before the injury. There are a number of reasons for this including relationship breakdown, difficulties starting new relationships, lower sex-drive.

Changes in arousal

Up to 30% of men report erectile difficulties after the injury (Kreuter et al., 1998)
Erectile difficulties vary, with some people able to achieve only partial erections, or erections in some situations but not others, and others unable to achieve erections in any situation. It is not yet known whether environmental factors (eg. performance anxiety, depression) may be the cause of these difficulties as often as the brain injury itself. Up to 18% of women reported lower levels of vaginal lubrication after the injury (Hibbard et al., 2000)

Orgasmic problems

Up to 40% of both men and women reported decreased or no experience of orgasm post-injury (Kreuter et al., 1998)

Disruption to the menstrual cycle

It is common for a woman’s period to stop after a brain injury. It usually starts again after four to six months.

Primary and secondary causes of change

Primary causes

The whole of the Central Nervous System is involved in sexual activities, from low in the spinal cord up to the most evolved part of the human brain. The brain is a sexual organ. It has been said that the brain is the ultimate sexual organ: the seat of sexual urges, thoughts, sensations, inhibitions and behaviours.

A number of reflexes including the sexual responses of erection, ejaculation, and vaginal lubrication are located in the spinal cord or brain stem. In evolutionary terms these reactions are understood to be similar to the responses of our most primitive vertebrate ancestor.

The brain also developed elaborate and complex higher cortical functions located in the midbrain, limbic system and frontal area. And thus sexuality is emotional, social and relational, about the self, values, attitudes and beliefs as well as sexual functions. And these factors can impinge on that primitive reflex response.

Therefore, brain damage can impact directly upon sexual functioning. It can also have indirect affects, as it impacts upon many other factors (e.g. relationships, self-value, sense of self-attractiveness) which influence sexual feelings, functioning and performance.

Secondary causes

Stress can cause problems for people’s sexual functioning. Stress is a common reaction to TBI.

Depression and anxiety have also be found to be very common after TBI and can affect a person’s sexual life.

Medication used for various conditions after TBI may also affect sexual functioning.

Chronic pain is common after TBI and pain affects people’s enjoyment of sex and feelings of sexuality.

Relationship difficulties are common after TBI and impacts on the couple’s sex life.

Other physical injuries apart from the TBI can also affect the person’s sex life.

Range of changes