While your groomer was partially right, (usually dogs can empty their anal glands on their own mainly while going number two) some smaller dogs have more trouble with this especially if they have softer stool and do require help expressing their anal glands. When the glands arent expressed they can become compacted and infection can occur. My groomer always checks Pete's anal glands when we take him in, their's also alot of info on the web about how to do it yourself. I hope your baby feels better soon