What are the symptoms of early or mild phlebitis?

Phlebitis: Tenderness redness and swelling.

Warmth: Phlebitis is an itis (inflammation) of a phleb (vein). Typically the symptoms are those of inflammation and include pain, swelling, warmth, and redness. Probably the earliest symptoms of phlebitis are warmth, itching (which is a mild form of pain), and aching. As things progress, the pain becomes worse and redness and swelling develop.