anal sac

**anal sac**
The anal sac, also known as anal glands, are small sacs located near the anus of many mammals, including dogs and cats. These glands produce a distinct-smelling secretion used for marking territory and communication. In pets, anal sac issues such as impaction or infection can cause discomfort and may require veterinary care. Understanding the function and health of the anal sacs is important for responsible pet ownership and care.