The old Miniature Schnauzer has a bad body odour
Channel: Dr David Sing
Date: 2018-05-29

Skin diseases of the limbs, backside and lower body for some weeks can cause a stench or bad body odour. The dog is checked for ringworm in this video. Later, yeast and mites from the skin will be checked. 

Skin disease in dogs in Singapore can be due to many factors. Foremost is skin infections by fungus, yeast and bacteria. 
Shaving bald and medication will be given. Review in 4 weeks.