Summarize the following:
When there's a problem with the anal glands, may dogs exhibit certain symptoms, which you should learn to recognize. Be sure to ask a veterinarian if you've never had this issue before: these symptoms may be a sign of other underlying issues, such as parasites, a sore bottom from diarrhea, or a food allergy, so it's a good idea to let a vet examine your dog. This way you can either rule out these issues, or get your dog the treatment it needs. The typical signs of anal gland issues include:  Scooting Excessive licking of the anal area Occasional release of anal gland contents at inappropriate times (other than defecation) - you may notice a fishy odor on furnishings or coming from your dog's anus Red skin in the anal area Bleeding or pus drainage around the anus (this is a sign that you should call your vet as soon as possible - do not attempt anal expression) If you've never expressed your dog's anal glands, ask your veterinarian for a demonstration. She can do the first gland, and then you can try expressing the second one in her presence. Typically, three to four damp paper towels and a pair of latex gloves will be sufficient. If you want to wash the dog, also have ready whatever shampoo or other dog-friendly soaps you use, as well as plenty of towels. Latex gloves are preferable to household rubber gloves as they are thinner and more sensitive, allowing you to accurately palpate the glands. While you can do this process on your own (if your dog is cooperative), it may help to have someone there to hold the dog as you work. The pheromones secreted by the anal glands are very stinky. It's a good idea to wear old clothes that you can take off and wash easily. Often, the bathroom works well for this purpose, especially if you bathe your dog in the tub. You just want to make sure the dog can't struggle free and run off during the process.  The dog should be on an easy-to-clean surface. Since the process can be somewhat messy, pairing an expression with a bath is usually a smart idea.

Summary:
Look for certain signs of anal gland issues. Have a veterinarian demonstrate anal gland expression the first time. Gather your materials. Recruit a helper if you can. Put on old clothes. Secure the dog in a small room.