The first sign that you have varicose veins
is that you can see them. They are can large or small and fairly straight or very squiggley.
They are usually below the knee, but can be in the thigh as well. Initially, they might be completely painless but the longer you have them, the more likely they are to cause pain, heaviness, cramping, tiredness, fatigue, throbbing, itching, and swelling.