Yes, kidney stones can occur at any age, from infancy through to late adulthood. While they are most commonly diagnosed in adults aged between 30 and 60, clinical data from the UK shows a concerning rise in cases among children and teenagers. The primary triggers for stone formation such as dehydration, diet, and metabolic issues affect different age groups in unique ways. In younger populations, stones are often linked to genetic factors or high salt intake, whereas in older adults, they are more frequently associated with underlying health conditions and long-term lifestyle habits.
What We will cover in this Article
- The rising incidence of kidney stones in children and teens
- Why the 30–60 age bracket remains the highest-risk group
- Age-specific triggers: From genetics to metabolic health
- How symptoms may differ in infants versus adults
- A data table of stone risk and types by age group
- Preventative measures tailored for different stages of life
Kidney Stones in Children and Teenagers
Historically, kidney stones were rare in children, but UK hospital admissions for paediatric stones have increased significantly over the last two decades. In children and infants, stones are frequently ‘atypical’ and often signal an underlying metabolic or genetic issue, such as cystinuria or primary hyperoxaluria.
In teenagers, the rise is primarily attributed to ‘Western’ dietary habits. High consumption of processed snacks (which are high in sodium) and a preference for sugary sodas over plain water create the perfect environment for mineral crystallisation. Because a child’s urinary tract is smaller, even a very small stone can cause a significant and painful blockage.
- Infants: Often linked to premature birth or specific genetic conditions.
- Young Children: Frequently caused by structural abnormalities in the urinary tract.
- Teenagers: Mostly driven by high salt intake and chronic dehydration.
The Peak Risk Years: Ages 30 to 60
The majority of kidney stone cases in the UK occur during middle adulthood. This is the stage of life where cumulative dietary habits such as high protein and salt intake begin to manifest as physical stones. For men, the risk typically peaks in their 40s, while for women, the risk often shows a ‘dual peak’ in the late 20s and again after menopause.
During these years, metabolic changes play a significant role. Conditions such as obesity, Type 2 diabetes, and high blood pressure all change the chemistry of the urine, making it more likely to become ‘supersaturated’ with calcium or uric acid. In this age group, stones are most often a lifestyle-related condition that can be managed through significant changes in hydration and nutrition.
Kidney Stones in Later Life
As people enter their 60s and 70s, the risk of kidney stones remains, but the causes often shift toward underlying medical issues or medication side effects. For example, older men with an enlarged prostate may experience ‘urinary stasis’ where the bladder doesn’t empty fully allowing minerals to settle and form stones.
Additionally, some medications common in later life, such as certain diuretics or calcium-based antacids, can influence mineral levels in the kidneys. In the elderly, the symptoms of a stone can sometimes be ‘atypical’, presenting as a dull ache or even confusion (delirium) if a secondary infection develops, rather than the sharp, classic ‘renal colic’ pain seen in younger adults.
Comparison of Stone Risk and Types by Age
| Age Group | Common Stone Type | Primary Driving Factor | Clinical Focus |
| Infants (<2 yrs) | Calcium Phosphate | Genetic / Prematurity | Specialist metabolic review |
| Children (2-12 yrs) | Calcium Oxalate | Salt intake / Structural | Ultrasound of urinary tract |
| Teens (13-19 yrs) | Calcium Oxalate | Dehydration / Sodas | Hydration and diet education |
| Adults (20-60 yrs) | Calcium / Uric Acid | Diet / Obesity / Gout | Lifestyle modification |
| Elderly (60+ yrs) | Uric Acid / Struvite | Medication / Prostate | Managing underlying conditions |
To Summarise
Kidney stones do not discriminate by age and can affect anyone from a newborn to the elderly. While the peak years for formation are during middle age, the increasing rates among children highlight that lifestyle and diet are critical at every stage of life. Recognizing the specific triggers for each age group allows for better prevention, ensuring that the kidneys remain clear of painful mineral deposits regardless of how old a person is.
If you experience severe, sudden, or worsening symptoms, such as intense pain in your side, blood in your urine, or a high fever with chills, call 999 immediately.
What is the youngest age a child can get a kidney stone?
Kidney stones can occasionally be found in newborns and infants, where they are typically related to genetic conditions or complications from intensive neonatal care.
Why are stones becoming more common in teenagers?
The rise is largely due to ‘Westernised’ diets that are very high in salt and sugar, combined with a significant lack of plain water consumption.
Are stones more dangerous for older people?
They can be, as older adults are more likely to have other health conditions and are at a higher risk of developing sepsis if the stone causes a secondary infection.
Can a child’s kidney stone be a sign of something else?
Yes, in children, a stone is often a ‘sentinel’ event that triggers a search for underlying metabolic or structural issues in the urinary system.
Is the pain the same for a child as it is for an adult?
Yes, the pain of renal colic is described as equally intense for children; however, younger children may have difficulty describing the pain and may just appear extremely distressed or vomit.
Does a stone in childhood mean I will have them forever?
Not necessarily, but it does mean you have a higher lifetime risk and must remain diligent with hydration and diet into adulthood.
Can menopause increase stone risk in women?
Yes, the drop in oestrogen after menopause can lead to higher levels of calcium in the urine, increasing the likelihood of stone formation.
Authority snapshot
This article was reviewed by Dr. Stefan Petrov, a UK-trained physician with an MBBS and postgraduate certifications including ACLS and BLS. Dr. Petrov has managed kidney stone cases across all age groups, from paediatric emergency reviews to complex geriatric care in NHS wards. This guide follows clinical standards to ensure accurate, safe, and age-appropriate information for patients and families.
