The Most Difficult Bone in the Body to Break, Ranked

Choose the bone you think is the most difficult!

Author: Gregor Krambs
Updated on Jun 17, 2024 06:29
Determining which bone in the human body is the most resilient to fractures is not just a matter of curiosity but also of practical importance. Medical professionals and patients alike benefit from understanding the strengths and vulnerabilities of our skeletal structure. This knowledge can influence treatment methods after accidents or help in the design of sports gear that better protects athletes. By participating in this poll, you contribute to a collective understanding that could impact preventive health measures and safety equipment innovation. Every vote cast in this ranking offers a clearer picture of common perceptions and experiences with bone resilience, guiding future educational and research endeavors.

What Is the Most Difficult Bone in the Body to Break?

  1. 1


    The femur, or thigh bone, is the longest and strongest bone in the human body.
    • Strength: Can support up to 30 times the weight of an adult's body.
  2. 2


    The tibia, also known as the shin bone, is the second largest bone in the body.
    • Location: Located in the lower leg.
  3. 3


    The humerus is the long bone in the upper arm.
    • Location: Runs from the shoulder to the elbow.
  4. 4


    The pelvis is a basin-shaped structure that supports the spinal column and protects abdominal organs.
    • Function: Supports the weight of the upper body when sitting and standing.
  5. 5


    The skull protects the brain and forms the shape of the face.
    • Composition: Made up of 22 bones that are fused together except for the mandible.
  6. 6


    The clavicle or collarbone is a long bone that serves as a strut between the shoulder blade and the sternum or breastbone.
    • Function: Acts as a support for the shoulder.
  7. 7


    The mandible, or lower jaw, is the largest, strongest and lowest bone in the human face.
    • Function: Holds the lower teeth in place and forms the lower jawline.
  8. 8


    The sternum or breastbone is a long flat bone located in the central part of the chest.
    • Function: Connects to the ribs via cartilage and forms the front of the rib cage, thus protecting the heart, lungs, and major blood vessels from physical trauma.
  9. 9


    The vertebrae are the series of small bones that form the backbone.
    • Function: Protects the spinal cord and supports the head and body.
  10. 10


    The sacrum is a large, triangular bone at the base of the spine and at the upper and back part of the pelvic cavity.
    • Function: Connects the spine to the hip bones (iliac).

Missing your favorite bone?

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About this ranking

This is a community-based ranking of the most difficult bone in the body to break. We do our best to provide fair voting, but it is not intended to be exhaustive. So if you notice something or bone is missing, feel free to help improve the ranking!


  • 180 votes
  • 10 ranked items

Movers & Shakers

Voting Rules

A participant may cast an up or down vote for each bone once every 24 hours. The rank of each bone is then calculated from the weighted sum of all up and down votes.


Additional Information

More about the Most Difficult Bone in the Body to Break

Rank #1 for the most difficult bone in the body to break: Femur (Source)
The human skeleton is a marvel of engineering. It supports the body, protects internal organs, and allows movement. Some bones are more robust than others. Among these, one stands out as the most difficult to break. This bone is dense, strong, and well-protected by surrounding structures.

Bones vary in strength based on their location and function. Weight-bearing bones are often thicker and denser. They must support the body's weight and withstand daily stresses. This makes them less prone to fractures. The most difficult bone to break benefits from these characteristics.

Its location in the body also contributes to its durability. It is not exposed to direct impacts as much as other bones. Muscles, fat, and other tissues cushion it. This extra protection reduces the risk of trauma.

The structure of the bone itself adds to its strength. It has a unique shape that distributes force evenly. This minimizes the risk of cracks or breaks. The bone's density also plays a crucial role. High mineral content makes it hard and resilient.

Bones are living tissues that can repair themselves. Cells within the bone constantly remodel it. This process helps maintain strength and integrity. Even if small cracks occur, the bone can heal over time.

Injuries to this bone are rare. When they do happen, they often result from severe trauma, such as car accidents or falls from great heights. Even then, the bone may not break completely. Instead, it might crack or sustain minor damage.

The difficulty in breaking this bone does not mean it is invincible. Like all bones, it can weaken with age. Conditions like osteoporosis can reduce bone density. This makes fractures more likely. Proper nutrition and regular exercise help maintain bone health.

Medical professionals recognize the resilience of this bone. They know that injuries to it require significant force. When such injuries occur, they often indicate severe trauma elsewhere in the body.

Understanding the factors that contribute to the strength of this bone helps in appreciating the complexity of the human skeleton. Its design and function showcase the body's ability to protect itself. The combination of density, structure, and location makes it the most difficult bone to break.

In summary, the hardest bone to fracture is a testament to the body's engineering. Its strength comes from its density, shape, and protected position. While it is not immune to injury, it is less likely to break than other bones. This resilience underscores the importance of maintaining bone health through proper care and lifestyle choices.

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