My one year old has a lump above his belly button.  Hes had a cough for about a week now and has been given antibiotics via the pediatrician.  I was thinking the cough caused some sort of strain, but hes not acting like it hurts at all.  We only noticed it because he was laying in my husbands lap throwing a tantrum.  It felt weird too and looked like it had a blue color to it?  What could it be?
Welcome to Chat Doctor .1. Symptoms seems like umbilical hernia. Excessive cough can be the cause.2. Caused due to the defect in the anterior abdominal wall.3. Blue color you have noticed are seen when there is a strangulation of the bowel / Momentum.4. Suggest to see your doctor, once examined an ultrasound test would help in detection of the defect and its contents. Hope it helps you. Wish you a good health. Anything to ask ? Do not hesitate. Thank you.