Harry: Wide rib cage
Ron: Weight
Hermione: Acne
Mattheo: Grades
Neville: Family issues
Oliver: Height
Fred: Glasses
George: Rosacea ( It's where your skin in constantly red and bumpy)
Draco: Hair
Cedric: Braces
Tom: Stomach
Luna: Cheeks ( face)
Ginny: Hands
Bill: Ears
Charlie: Thighs
Blaise: Back
Young James: Lips
Young Sirius: Nose
Young Remus: Legs
Young Snape: Stretch marks