After surgery is it normal for your belly button to leak clear liquids?

Possibly.: Best to run this question by your surgeon. The answer will depend on exactly what procedure was performed. Drainage from incision lines may be a sign of a complication, which should be addressed by your surgeon. For example, signs of infection include drainage, redness, swelling, fever/chills… on the other hand, depending on the specific procedure, the leakage may be of no concern. Best wishes.