Irritable bowel syndrome (IBS) can be diagnosed at any age, though it most commonly begins in the teens or early adulthood. There are a few key things to know about when IBS is typically diagnosed:
IBS Often Starts in Teens/Early Adulthood
While IBS can occur at any age, it most frequently starts in individuals between the ages of 15-35 years old. Some key facts about IBS onset include:
- Up to 20% of adolescents report symptoms of IBS.
- IBS is one of the most common gastrointestinal disorders diagnosed by gastroenterologists.
- The average age of IBS diagnosis is around 35 years old.
- 75% of individuals with IBS are diagnosed before age 50.
The reason IBS often starts in adolescence and early adulthood is thought to be related to changes during this time, such as shifts in gastrointestinal motility, intestinal microflora, diet, hormones, and psycho-social influences.
IBS Can Persist for Years Before Diagnosis
While IBS symptoms frequently begin in adolescence or early adulthood, individuals often live with the condition for years before receiving a diagnosis. Some key statistics:
- It takes an average of 5 years for someone with IBS symptoms to be diagnosed.
- Only around 5-7% of individuals see a doctor for IBS symptoms within the first year.
- 30% of individuals wait more than 10 years before seeking medical advice for symptoms.
There are several reasons for this lengthy delay in diagnosis:
- Milder or intermittent symptoms may not prompt a doctor visit.
- People think symptoms are “normal” and don’t require treatment.
- Primary care doctors may not recognize or investigate symptoms.
- Stigma around bowel symptoms prevents people from seeking help.
As a result, many individuals suffer with IBS symptoms for years before an accurate diagnosis and treatment.
IBS Can Occur Later in Life Too
Although IBS most commonly starts in adolescence and early adulthood, it can begin at other ages too. Some key points:
- Up to 50% of new IBS cases are diagnosed in individuals over 50 years old.
- Onset over age 50 is more common in women than men.
- Older adults with new IBS symptoms should be evaluated for other conditions like celiac disease.
- Stressful life events in older age can trigger IBS symptoms.
While less common than younger onset, developing IBS for the first time later in life is certainly possible. Unexplained abdominal pain, constipation or diarrhea in middle-aged or older individuals warrants medical evaluation.
Children Can Develop IBS Too
Although very uncommon, children can sometimes be diagnosed with IBS. Key facts:
- Only around 1-2% of school-aged children have IBS.
- Boys and girls appear to be equally affected.
- Symptoms in children are similar to adults.
- Stressful life events can trigger pediatric IBS.
Diagnosing IBS in children can be challenging. Doctors need to rule out other abdominal issues, which are far more prevalent in this age group. But persistent symptoms should prompt evaluation for IBS.
Conclusion
In summary, while IBS can occur at any age, typical onset is in the teens or early adulthood. However, many live with symptoms for years before diagnosis. Later-onset IBS is also possible, as is development in childhood. Increased awareness at all ages is critical to improve early recognition and treatment of this common disorder.