The word phlebitis means the inflammation of a vein. This is the result of blood clots forming in the veins, or if the walls of veins have become damaged, which can both cause inflammation. Symptoms of phlebitis include painful, hard lumps beneath the skin, as well as redness on the skin. The most common area where phlebitis is noticed is in the lower leg, but this condition can sometimes also affect the arms, penis, or breasts. Most of the time this is nothing too concerning, but phlebitis poses a risk of developing deep vein thrombosis, which is a more serious condition. Depend on the Medical Practitioners at SickDay to evaluate and treat your symptoms, and ease any worries you may have.