Lionel Messi’s childhood battle with growth hormone deficiency nearly ended his football dream, but experts say early treatment can help many children grow and thrive.

Lionel Messi’s football career almost ended before it began after he was diagnosed with growth hormone deficiency (GHD) as a child.
His story is drawing renewed attention during the FIFA season, but medical experts say it also highlights the importance of early diagnosis and timely treatment for children with GHD. According to research published in the Jornal de Pediatria and Endocrine, modern Growth Hormone therapy has significantly improved long-term outcomes for children with this condition.(1✔ ✔Trusted Source
Growth hormone deficiency and the transition from pediatric to adult care
)(2✔ ✔Trusted Source
Long-Term experience with growth hormone therapy in pediatric growth disorders: an analysis of the LG growth study data
)
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What Is Growth Hormone Deficiency and Why Was It a Challenge for Messi?
Growth hormone deficiency is a condition in which the
As a child, Messi required regular Growth Hormone injections after doctors diagnosed him with GHD. Reports suggest the treatment cost around US$900 to US$1,000 per month, placing a heavy financial burden on his family. His move to FC Barcelona became a turning point because the club agreed to support both his football development and his medical treatment.
The Jornal de Pediatria review explains that growth hormone continues to play an important role even after children stop getting taller. It supports bone strength, muscle development, healthy body composition, lipid metabolism, and quality of life during adolescence and early adulthood.
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Why Does Early Diagnosis and Treatment Make Such a Big Difference?
Messi’s story reflects what doctors now know about treating childhood GHD. Early medical care can greatly improve long-term outcomes.
A recent study involving 3,103 children with growth disorders found that growth hormone therapy produced substantial improvements in height across different conditions. The largest increase in growth occurred during the first year of treatment.
Children with GHD who started therapy at a younger age achieved better height gains than those who began treatment later.
Experts also note that growth hormone therapy prescribed for medical deficiency is very different from the illegal use of growth hormone by athletes to enhance performance. Messi’s treatment was intended to replace a missing hormone and support normal growth under specialist supervision.
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Can Children With Growth Hormone Deficiency Live Healthy Lives?
For many children, the answer is yes. With timely diagnosis, regular follow-up, and appropriate Growth Hormone therapy, many can reach normal or near-normal adult height and enjoy healthy, active lives.
The Jornal de Pediatria review says growth hormone replacement can improve:
- Lean muscle mass.
- Bone mineral density.
- Body composition.
- Exercise capacity.
- Overall quality of life.
The review also highlights that some children diagnosed with GHD in early childhood may no longer have the condition after puberty. Specialist reassessment is therefore recommended before deciding whether treatment should continue.
Messi’s journey is more than an inspiring sports story. It shows how early diagnosis, access to specialist care, and timely treatment can help children with growth hormone deficiency overcome medical challenges and achieve their full potential.
References:
- Growth hormone deficiency and the transition from pediatric to adult care – (https://www.sciencedirect.com/science/article/pii/S0021755721000541)
- Long-Term experience with growth hormone therapy in pediatric growth disorders: an analysis of the LG growth study data – (https://link.springer.com/article/10.1007/s12020-025-04535-x)
Source-Medindia
