Popliteal artery aneurysm is a dilation greater than 1.5 cm in the diameter of the popliteal artery. It is a rare condition in children, which is frequently associated with connective tissue disorders or traumatic events. Clinically, it can present as a pulsating mass in the popliteal region, accompanied by pain and thrills in symptomatic cases. Diagnosis is made using Doppler ultrasound, although advanced techniques such as angiography can be used for more detailed evaluation. Management varies depending on the size and symptoms, with open surgery being the preferred treatment for aneurysms larger than 2 cm, with endovascular options reserved for specific circumstances; however, they are not recommended in young patients due to the high risk of stent rupture. Complications include thrombosis, infection, and limb loss in cases of aneurysm rupture without any corrective management.