Is there anything you can do to prevent telangiectasia?

These can be treated with lasers, I suggest seeing a cosmetic dermatologist with experience and have a formal evaluation.  Best, Dr. Emer.

Thank you for your question.It is a common question that patients ask when you have a busy vein practice.On the face, sun exposure is the highest risk factor and aging of the skin where the skin thins out.On the legs, genetics predisposes men and women to the development of spider veins, reticular veins and varicose veins. I recommend that you exercise your legs regularly and wear compresison stockings at work, especially if you sit or stand for long periods of time. Bioflavonoids are excellent natural supplements to take for venous insufficiency.Dr Karamanoukian

Facial spider veins have a genetic component to their development. There isn't a lot you can do to prevent them. Leg veins also have a strong genetic predisposition, but there are things, such as compression stockings, which can help reduce their development. Be well, Dr. M