What condition is typically associated with painful swelling in the veins?

The condition associated with painful swelling in the veins is phlebitis. Phlebitis refers to the inflammation of a vein, which often results in swelling, redness, warmth, and tenderness along the affected area. This inflammation can be due to various factors, including trauma, infection, or prolonged immobility.

The painful swelling is a key symptom of phlebitis, as the inflamed vein can lead to discomfort and pain when touched or when pressure is applied. Additionally, the inflammation can result in blood clots in some cases, leading to further complications if not addressed. This condition often requires medical attention to manage symptoms and avoid potential complications, such as deep vein thrombosis.

In contrast, while varicose veins also involve swelling, they are typically painless and do not necessarily present with inflammation. Peripheral vascular disease (PVD) encompasses a range of disorders related to blood flow and symptoms may vary widely, but painful swelling is not its hallmark. An infarction refers to tissue death due to lack of blood supply, which is not specifically linked to a scenario of painful swelling in the veins.