I'm 20 years old, my weight is 115lbs and my height is 5'3". do i need to lose weight? because i recently gained weight around my thighs.

No: That weight is perfect for your height. Take care.

BMI 20.3: Your body mass index of 20.3 places you in a perfect weight range for age. Understand that a change in your body contours will occur as part of your transition into womanhood. What you may think is weight may just be the natural widening of your pelvis that corresponds to your change from girl to woman.