A 10-year-old with this hormonal profile and physical development would be diagnosed with Central Precocious Puberty. This is a serious medical condition with significant consequences:
Rapid Skeletal Maturation: Her bone age would be significantly advanced (e.g., her wrist X-ray might look like that of a 13-15 year old).
Short Stature: As mentioned, the early fusion of growth plates would result in adult short stature.
Psychosocial Challenges: She would be dealing with the complex emotions and social situations of adolescence while still having the cognitive and emotional maturity of a 10-year-old, leading to potential distress, social isolation, and higher risk of psychological issues.
Underlying Cause: Such a dramatic deviation from the norm would require immediate medical investigation to rule out serious causes like tumors on the hypothalamus, pituitary gland, or ovaries, or other neurological issues.
In summary, while May's design is a fictional stylistic choice, the real-world hormonal profile required for her depicted physique would be that of a teenager, not a 10-year-old. It would indicate a significant and medically concerning endocrine disorder (precocious puberty) characterized by:
Dramatically elevated Estradiol
Adult-level pulses of FSH and LH
Peak levels of Growth Hormone and IGF-1
An advanced bone age leading to premature growth plate closure
The anime's portrayal is a classic example of how animation often prioritizes a specific aesthetic over realism, creating a character whose visual design is disconnected from her stated age.