Hi, My child 7 months, had circumcision today, He...

regarding your child case :
usually in such a case , you can ask healthcare provider to change the catherter end-like bag, there is low adjustment click in that end 
- if you are not currently in hospital , search for the click to take out the bag and attach another one 
possible side effects of circumcision ?
1. bleeding 
2. inflammation
3. pain 
How to deal with circumcision bleeding :
1. usually the doctor will recommand some steps to deal with it such as putting local medications and change it cover every other day 
2. follow doctor instruction and consult him/her if any symptoms appeared 
3. make sure your baby private area have well air entry 
4. bleeding shouldnt last longer than 1-2 days