Scat is MEDIUM RISK

Scat involves playing with faeces (shit), smearing it on your or his body, and sometimes eating it. It can also mean just getting off on seeing another guy dump his load.
Men can like scat because it provokes such a strong negative reaction in others. Lovers of scat might get a kick from stepping over what for most people is the line between what’s OK and what’s too extreme.
There is no evidence that HIV transmission has occurred from contact with faeces but blood can occasionally be present in faeces. There is a high risk of transmitting other infections such as hepatitis A (very high risk) and hepatitis C as well as intestinal parasites.
This information was taken from Terrence Higgins Trust’s ‘Hardcell’ website