Is it normal for an infant to have thick thighs and thin calves with inwardly curved legs?

Patient's question:

Basic Information: Female, 4 months
Disease/Symptoms: Infant's inner calf bend
Condition Description: My baby is over 70 days old. Why are her thighs so thick and her calves very thin, and they are bent inward. Is this normal?

Doctor's answer:

If you want to slim down your legs, first check if your leg muscles are loose or tight. If the muscles are tight, weight loss will be more difficult. Therefore, the first step to slimming down your legs is to start with the loose and firm calves.
1. Lift your thigh parallel to the ground while keeping your upper body straight. Lift your calf while pressing down firmly. Do this 120 times a day, completing 4 sets. You will see results quickly.
2. Sit with your thighs and calves at a 90-degree angle. Keep your lower body still while tilting your upper body to the left and holding the position for 30 seconds. Then tilt to the right and hold for 30 seconds. This exercise can reduce fat on the outer thigh.