Marco's delayed growth and sudden growth spurt

Marco’s delayed growth and sudden growth spurt are a defining bodily exception in his adolescence and an early pattern for the way change arrives in his life: years of arrested development give way to a rapid transformation that neither he nor the adults around him can fully explain. In the autumn of 1974, an experimental treatment is followed by an unexpectedly large increase in height; Marco inhabits the change as it happens, while his parents disagree over what caused it and what risks it might carry.

Delayed Growth and Treatment

For fifteen years, Marco’s small stature kept him apart from his peers. The treatment he received in autumn 1974 was intended to address his growth, but the result exceeded the doctor’s expectations. In October he was 1.56 metres tall, while the average for boys his age was about five feet. By the following June, after eight months, he had grown sixteen centimetres, reaching five feet seven. The sudden increase then stopped, and his height began to settle around the middle of the range for his peers.

The treatment was experimental, and the account does not offer a settled medical explanation for its effect. Dr. Vavassori had expected that, over fifteen months rather than eight, Marco would gain only about two-thirds of the height he ultimately gained. The outcome was therefore more dramatic and faster than planned, but not a straightforward account of cure: the doctor’s expectation, the actual result, and the lack of explanation remain distinct parts of the episode.

The Family’s Explanations and Fears

Marco’s mother, Letizia, believed the treatment had not caused the growth spurt. Her faith in the ideas of D’Arcy Wentworth Thompson led her to see the sequence—initially insufficient growth, then a sudden surge, then eventual alignment with ordinary human proportions—as something anticipated by Marco’s genetic code. For her, his body had followed an internal course from the beginning, rather than simply responding to medical intervention.

His father, Probus, held a more conflicted view. He had tenaciously wanted the treatment and was pleased that it produced such a substantial result, yet the scale and speed of the change also made him wonder whether the procedure had exceeded his control over his son’s body. He worried that the unexpected outcome might carry delayed costs, including infertility, degenerative disease, tumours, or malformations. Dr. Vavassori acknowledged that the experimental protocol had included the possibility of delayed side effects in its consent documents, but considered Probus’s fear that the unusually strong success itself increased the risk to be unfounded and somewhat paranoid. The narrative records Probus’s concern without establishing that any such consequence followed.

Marco’s Experience of Change

Marco, overwhelmed by the physical transformation, had little space to reflect on its meaning. His body had resisted growth for years; now it grew with comparable force. From November to June he gained two centimetres a month, a rate the narrative also translates into roughly a pound and a half of weight and half a shoe size each month. Keeping up with the change became his sole occupation.

The account emphasizes neither shame nor alarm in Marco’s response. He was not frightened or impatient, and he did not set conditions for the transformation; instead, he adapted to it as it unfolded. His body seemed to pass abruptly from childhood into that of a grown boy, but he was not traumatized by the shift, in part because he understood the treatment’s purpose to be growth. The episode presents adaptation not as mastery over the body but as a practical capacity to inhabit a change that has already begun.

Outcome and Narrative Significance

After the initial surge, Marco’s height stabilized at 1.74 metres at sixteen, 1.76 at seventeen, and 1.78 at eighteen, followed by one final centimetre the next year. As an adult, he stood just above the national average. This gradual settling contrasts with the abrupt sixteen-centimetre leap: the exceptional episode ends not in continued physical excess but in a return to ordinary proportions.

In later life, Marco remembers the experience of being a hummingbird as an episode among others. Its significance extends beyond adolescence, however. The narrative identifies a recurring rhythm in his life: he can remain still for years while events move around him, then be thrust suddenly into an unfamiliar situation. Such transitions often bring pain and provoke the question of why this has happened to him. The growth spurt is an early bodily instance of that structure—prolonged waiting followed by an intense, unforeseen change—and a first demonstration of the resilience that will help him endure later upheavals.