Coccyx (Coccyx, Pl. Coccyges or Coccyxes)

Coccyx (Coccyx, Pl. Coccyges or Coccyxes)

Coccyx (lat. Coccyx, plural Coccyges or Coccyxes) is the distal part of the spine, which is a homologue of the caudal skeleton of animals; vestigial tail in humans. Usually consists of two to five (usually four) rudimentary coccygeal vertebrae (lat. coccygeal vertebrae), connected to each other and forming a triangular bone, which, in turn, usually fuses with the apex of the sacrum.

The tailbone is a remnant of the tail that human ancestors had. In modern humans, it does not perform any functions other than attaching muscles and ligaments. The coccygeal vertebrae are smaller in size than the vertebrae in other parts of the spine. They have a specific structure and are connected by cartilaginous discs.

The coccyx refers to anatomical terms with the prefix “coccygeal” (lat. coccygeal), for example, coccygeal gland, coccygeal nerves, etc.



Coccyx (Coccyx, Pl. Coccyges or Coccyxes): Vestigial human tail

The coccyx, also known as the coccyx, is the distal portion of the vertebral column that represents a vestigial tail in humans. This small bone, consisting of two to five (usually four) coccygeal vertebrae, is located at the bottom of the spine, under the sacrum, and connects to it, forming a triangular shape. The coccygeal bone usually fuses with the tip of the sacrum.

Functionally, the coccyx serves as a support for various muscles, ligaments and tendons, and is also an attachment point for some important structures. It provides support when sitting and helps distribute body weight on sitting surfaces. In addition, the coccygeal region also serves as an attachment point for some of the pelvic floor muscles, which play an important role in supporting the urinary and rectal bowels.

In some cases, the tailbone can become the target of various problems and diseases. Injuries, fractures, muscle strain, inflammation and even tumors can cause pain in the tailbone area. This condition, known as coxalgia, can cause significant discomfort and disruption to quality of life.

Treatment for tailbone problems varies depending on the specific diagnosis. In most cases, conservative methods such as applying ice packs, taking pain relief medications, and physical therapy can help manage symptoms. However, in some cases, surgery may be necessary, especially if there is severe damage or tumors.

In conclusion, the coccyx, or coccyx, is a vestigial remnant of the caudal skeleton in humans. It is important for the support and stability of the pelvic region, and is also an attachment site for various structures. Tailbone problems can cause pain and require medical intervention to relieve symptoms.



The coccyx (coccyx) in humans serves to maintain the correct position of the pelvis when sitting, and also acts as a biomechanical shock absorber while sitting. It consists of three to five fused vestigial vertebrae that have a triangular base and are usually clearly visible on rectal examination. In men, the length of the coccyx is from 3 to 4 cm, and in women - 2-3 cm. The coccyx consists of 5-6 vertebrae. The first four grow together to form a base. The fifth fused vertebra is called the copetsine or tip vertebra, and is connected to the pelvic floor. Protruding articular surfaces of bones cause pain in weakened elderly people due to malnutrition and hypothermia. Gender and presence determine the shape of the coccyx: if it is conical, then it is male; if it is wedge-shaped, then it is female; if the coccyx is flat, then the sex of the child can be found out by examining the parents. Benign tumors can form in the hypothalamus and pituitary gland, simulating the fourth rudimentary coccyx. It is well differentiated by blood culture abnormalities. It is taken as an additional diagnostic material for research in the postoperative period.