How can you straighten bow legs?

Depends: Some now do not want their bow legs treated. See the si picture of earl campbell, running back of texas. Bow legged? Fast! sometimes not acceptable in females (?) but not treated as often as in past. If found early in age, splints can be used. I would be cautious and seek opinion of pediatric orthopedist and consider second opinion.

Surgery: Surgery unless it is a young child and then special braces will help.