Anal gland
Glands located near the anus in many mammals
The anal glands, also known as anal sacs, are small glands located near the anus in many mammals, including dogs, cats, and humans. These glands are responsible for producing a secretion that is used for marking territory and communication among animals. In some species, the secretion has a strong odor that can be used to identify individuals or signal reproductive status.
Anatomy[edit | edit source]
The anal glands are located on either side of the anus, typically at the 4 o'clock and 8 o'clock positions. Each gland is connected to the surface of the skin by a small duct. The glands are lined with cells that produce a fatty, odorous secretion. In dogs and cats, these secretions are often expressed during defecation, which helps to mark territory.
Function[edit | edit source]
The primary function of the anal glands is to produce a scent-marking secretion. This secretion contains pheromones and other chemicals that convey information about the animal's identity, reproductive status, and territory. In some species, the secretion can also serve as a defense mechanism, as the strong odor can deter predators.
Clinical Significance[edit | edit source]
In domestic animals such as dogs and cats, anal gland issues are relatively common. Problems can arise when the ducts become blocked, leading to impaction or infection. This condition is known as anal sac disease. Symptoms of anal sac disease include scooting, licking or biting at the anal area, and discomfort during defecation.
Treatment[edit | edit source]
Treatment for anal gland issues typically involves manual expression of the glands to relieve impaction. In cases of infection, antibiotics may be prescribed. In chronic or severe cases, surgical removal of the glands may be necessary.
Human Anal Glands[edit | edit source]
In humans, the anal glands are less developed and do not serve the same prominent role in communication as they do in other mammals. However, they can still become infected or blocked, leading to conditions such as anal abscess or fistula.
Related Pages[edit | edit source]
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Contributors: Prab R. Tumpati, MD
