Do you put weight on if you have high prolacting?

Possible: Depends on ehats causing the high levels. Some of the associated conditions are accompanied by increase in weight.

Yes you can: Yes you can gain weight when you have high prolactin level.

You can : Elevated prolactin levels can be associated with pituitary adenomas which are benign brain tumors. They cause elevated prolactin and are often associated with irregular or stopped menstrual cycles and at times breast discharge. There is some association with weight gain and as the prolactin levels come down there is wt loss. Medication is the usual treatment for these tumors.