Your thigh is the part of your leg that goes from your knee up to your hip. It's the thickest part of your leg, and contains many large muscles. These muscles help you walk, run, jump, and keep your balance.

Examples:

1. I have a mosquito bite on the back of my thigh.
2. These jeans are too tight on my thighs.
3. I bumped my thigh on the table.