Can spider veins occur on arms?

Theoretically yes!: I hope you are talking about thread like veins. I said theoretically as in 30 years of od vein practice I have not seen them on the arms. Legs, face, upper chest yes. Arms not yet. Go see a vein specialist who can treat them too.

This would be rare.: If you have these in a large amount on your arms, it may be a sign of something obstructing your venous system, and would be worth getting it checked out, particularly if you are a smoker.

Yes: Spider viens can occur on any part of the body but they most commonly form on the legs.

Arm spider veins.: Spider veins can occur on any part of the body but are most common on the legs. Spider veins have many causes including genetics, aging, sun exposure, trauma and saphenous vein valvular incompetence. Most spider veins can be treated by sclerotherapy or topical lasers. See a vein specialist.