Premature patients are more likely to suffer from flexible flat feet. This disease may be treated using a variety of methods. It may be treated with ease and simplicity using the calcaneal stop. According to our findings, this method is a worthwhile one. Methods and Subjects: A calcaneal-stop surgery was conducted on 20 feet in 12 individuals, seven men and five females, with flexible flat feet. They used the following criteria to determine who should be included: (a) skeletal immaturity; (b) symptomatic flexible flatfoot deformity (pain, function, and activity limits) that is not amenable to conservative therapy. AOFAS Ankle–Hindfoot score and Hindfoot valgus angle were used in the clinical examination. The results were reported back to the patient. Calcaneal pitch angles, Kite's angle, talar declination angle, lateral Meary's angle, and talonavicular coverage angle were used for radiological examination. All patients' clinical and functional results were assessed before, three and six months after surgery, respectively. A total of 88.4 SD 7.4 AOFAS scores were recorded at the conclusion of the trial, an increase from 70.6 SD 4.8 at the beginning. During the course of the research, the patient's heel valgus went from an average of 11.45 (SD 3.02) to a median of 2.7 (SD 1.3). Ending the investigation, the angle of the calcaneal pitch rose from 13.4 to 16.1 (SD 1.1). Kite angle decreased from 29.6° (SD 3.1°) to 26.7° (SD 2.7°) after surgery. A decrease from 22.4 to 11.2 (SD 5.68) was seen in the final talonavicular coverage angle. At six months following surgery, the lateral Meary talocalcaneal angle dropped from 20.55 6.9 to 14.3 4.73. Eleven patients (91.6 percent) were quite satisfied, and the one patient who had some discomfort at the location of the procedure did not need the removal of the screw. All clinical and radiological markers improved significantly (p .00001). After surgery, most of the alterations occurred. Although the progress was steady, it was not statistically significant. It is the patient's discontent that is the most pressing issue with flat feet. For the treatment of flexible flat feet, the calcaneal stop operation is a simple and straightforward surgery with little risks.