Introduction to the Pubic Bone and Its Functions

Part 1: Location of the Pubic Bone

The human body is composed of over 200 bones, each serving a distinct function. The pubic bone is a crucial component of the pelvis, situated at the anterior portion and inferior aspect of the hip bone. When touched, it feels like a relatively hard bone. For women, pregnancy brings about changes in the entire skeletal system, including the pubic bone. Many women experience pubic bone pain due to pregnancy-related factors.

The pubic bone is a part of the human skeleton and a vital component of the pelvis. Anatomically, it consists of the upper and lower limbs, the ischium, and the pubic symphysis formed with the contralateral pubic bone. It is generally located at the anterior aspect of the pelvis, forming the pubic symphysis that constitutes the bony protrusion accessible externally. This bony prominence typically presents as a relatively hard nodule, serving to protect crucial pelvic organs such as the bladder, urinary reproductive organs, and other viscera.

Therefore, injuries to the pelvis, such as fractures of the ribs, can easily damage the urethra, bladder, and reproductive organs of both males and females. Consequently, pelvic fractures should not be overlooked and require prompt and thorough examination to avoid missed diagnoses of vital organ damage that could lead to worsening conditions and severe sequelae.

Part 2: Functions of Bones

1. The pubic bone, located in the central region of the body, serves to protect internal reproductive organs as both male and female reproductive tracts pass through it. Additionally, it is supplied with qi and blood through ten meridians, and multiple muscle tissues and nerves are distributed around it. Therefore, in Traditional Chinese Medicine, the pubic bone is considered to have visceral functions.

2. The pubic symphysis also plays a significant role in pregnancy and childbirth. It is advisable for pregnant women to measure the size of the fetus and the distance between the pubic symphysis before delivery. In obstetrics, childbirth involves the fetus passing through the birth canal. In cases where the fetus is relatively small and the pubic symphysis has a large inclination, the fetus can pass through the pubic symphysis and reach the external orifice of the vagina for delivery. In contrast, for larger fetuses, the sacral curve may be utilized to facilitate delivery through the pubic symphysis. Thus, the pubic symphysis plays a crucial role in the process of pregnancy and childbirth.