Precocious puberty is the early onset of pubertal development, with secondary sexual characteristics appearing before the age of 8 for girls and 9 for boys. The earliest easily detected is the child’s accelerated growth rate, with enlarged breasts in girls and enlarged testicles in boys. Waiting until the onset of menstruation in girls and the thickening of the voice in boys indicates that the growth spurt has passed, the epiphysis begins to close, and growth potential is limited, resulting in a shorter final height, which becomes precocious short stature. Therefore, it is important to identify early developmental signs and understand the growth pattern of children. Early signs of development in girls: Breast lumps may appear bilaterally or unilaterally, with tenderness. Enlarged nipples, elevated and colored areolas. Accelerated growth and pelvic development. Appearance of pubic and axillary hair. Increase in subcutaneous fat. Early signs of development in boys: increase in testicular volume, growth of penis, enlargement of scrotum, increase in scrotal skin folds, deepening of pigmentation. The appearance of fine, light-colored hair in the armpits, upper lip, and pubic area. Accelerated growth. Thickening of the voice and appearance of laryngeal nodes. The nipples may become hard and swollen, and the areolas may become elevated and colored. Parents should go to an endocrinology clinic as soon as they notice signs of precocious puberty in their children to avoid missing the best time for treatment. If a girl develops leucorrhoea, it indicates that menstruation is about to start.