If you are anxious in the dream, you need to see your doctor.
If blood-letting is performed on you: you will have a fight with somebody. Blood-letting performed on someone else: somebody might die or get sick.
Depth Psychology: Veins are a symbol of vitality and “life’s juices.” It is important what your veins looked like, their condition, and what you felt during the dream. [1]
To dream that you are bleeding from your veins foreshadows a great sadness in your future. You can escape from the sorrow that is coming your way.
To dream that you have swollen or bulging veins indicates that you often trust those around you before they have proven their worth. [2]
Richness or abundance.
Communication.
Providing, giving, or nourishing.
Interconnection within a group.
Your connection with yourself, or your inner awareness.
Inner peace or harmony.
To see them bleeding, denotes that you will have a great sorrow from which there will be no escape.
To see them swollen, you will rise hastily to distinction and places of trust. [5]
2. Use extreme caution in activities, a possible message to avoid careless injury (to be bleeding). [6]