Osteoporosis

Our bones stay strong by fixing themselves.

Old bone is removed and new bone is made. As people get older, the body removes bone too fast. This makes bones weak and full of tiny holes.

Weak bones can break very easily. This might happen from a small trip or even a cough. It often happens in the wrist, hip, or spine.

Most people do not feel any pain at first. You might not know your bones are weak until one breaks. This is why staying active is good for you.

Bones are always fixing themselves. This is a set of steps called remodeling. Special cells called osteoclasts remove old bone. Then, other cells called osteoblasts make new bone.

In osteoporosis, this balance changes. The body removes bone faster than it makes it. This makes bones porous, which means they have tiny holes.

This makes bones very weak.

Most people have no symptoms at first. You might not know your bones are weak until they break. These are called fragility fractures. They happen from small things, like a cough or a tiny trip.

Common breaks happen in the hip, wrist, or spine.

Age is a big factor. About 70% of people over age 80 have this. Women are at higher risk than men. Low levels of estrogen can also cause bone loss in women.

To help bones, people can eat well and exercise. Weight-bearing exercise helps a lot. Staying active and not smoking can also help keep bones strong.

Osteoporosis is a condition that affects the whole skeletal system. The name comes from Greek words meaning "porous bones." It happens when bones lose their mass and become very thin. This makes the tiny structures inside the bone break down. Because of this, bones become more fragile. People with this condition face a much higher risk of breaking a bone.

Our bones are constantly changing through a way it works called remodeling. Two special types of cells manage this job. First, cells called osteoclasts remove old bone tissue. Next, cells called osteoblasts build new bone. In a healthy body, these two tasks stay in balance. However, with osteoporosis, the removal of bone happens faster than the building of new bone. This causes the bone to lose its density.

Doctors have studied how this happens for a long time. They know that bone density usually peaks around age 30. As people get older, the risk of bone loss goes up. It is very common in the elderly. For example, about 15% of Caucasians in their 50s have it. By the time people reach age 80, about 70% are affected. Women are often at a higher risk than men.

Many different factors can lead to weak bones. In women, low levels of estrogen after menopause can cause rapid bone loss. In men, lower levels of testosterone can have a similar effect. Other things like smoking or drinking too much alcohol can increase the risk. Some medicines for seizures or cancer also speed up bone loss. Doctors often use a test called a DXA scan to measure bone density. This helps them see if a person is 2.5 standard deviations below a young adult.

Osteoporosis is often called a silent condition. Most people have no symptoms at all. You might not even know your bones are weak until one breaks. These are called fragility fractures because they happen from minor stress. A person might break a bone just from coughing, bending, or a small trip. Common breaks happen in the wrist, spine, hip, or shoulder.

Taking care of your health through diet and exercise can help keep bones strong.

Osteoporosis is a systemic skeletal disorder that affects the entire body. The name comes from Greek terms meaning "porous bones." This condition is characterized by low bone mass, also known as osteopenia. It also involves the deterioration of the micro-architecture of bone tissue. This structural decay makes the bone more porous. As a result, the risk of fractures increases significantly.

Our bones are not static structures. They undergo a continuous process called remodeling. This process involves two specific types of cells working together. First, osteoclasts resorb or remove old bone tissue. Next, osteoblasts synthesize or build new bone. In a healthy system, these two processes stay in balance. However, with osteoporosis, the rate of resorption exceeds the rate of formation. This imbalance causes bones to lose density and become fragile.

There are many factors that contribute to this bone loss. Hormonal changes play a major role in the process. For women, bone loss increases after menopause due to lower estrogen levels. In men, bone loss can increase after andropause due to lower testosterone. Certain medical conditions also increase risk. These include hyperparathyroidism, hyperthyroidism, and kidney disease. Additionally, some medications can speed up bone loss. These include glucocorticosteroids, certain antiseizure medications, and chemotherapy.

Lifestyle choices also impact bone health. Smoking and a sedentary lifestyle are recognized as major risk factors. Alcohol consumption of more than three units per day can increase risk. A lack of physical activity can also lead to bone loss because remodeling responds to physical stress. Weight-bearing exercise is helpful for building bone strength. Nutrition is another critical factor. Low levels of calcium, magnesium, or vitamin D can weaken the skeleton. Vitamin D is especially important for maintaining bone mineral density.

Because osteoporosis often has no symptoms, it is a silent condition. People may not know they have it until a bone breaks. These are called fragility fractures. They occur during minor stress, such as coughing, bending, or a small fall. Common fracture sites include the wrist, spine, shoulder, and hip.

A vertebral collapse, or compression fracture, can cause sudden back pain. This may even lead to a stooped posture and loss of height. Hip fractures are particularly serious and often require prompt surgery.

Osteoporosis is very common among the elderly. About 15% of Caucasians in their 50s are affected. This number rises to 70% for those over age 80. In the United States, about 8 million women and 1 to 2 million men had the condition in 2010. In the European Union, roughly 22 million women and 5.5 million men were affected in 2010. Doctors define osteoporosis using a specific measurement. They look for a bone density that is 2.5 standard deviations below that of a young adult. This is typically measured using dual-energy X-ray absorptiometry, or DXA.

Understanding these risks helps in preventing future breaks. Doctors use fracture risk calculators like FRAX to assess danger. These tools look at age, gender, smoking, and bone density. Prevention includes maintaining a proper diet during childhood to reach peak bone mass. For adults, exercise and fall prevention are vital. Some people use bisphosphonate medications to decrease the risk of future breaks. These medications are most useful for people who have already experienced a fracture. Managing these factors can help improve quality of life and reduce the risk of disability.