Osteoporosis
Thin bones; Low bone density; Metabolic bone disease; Hip fracture - osteoporosis; Compression fracture - osteoporosis; Wrist fracture - osteoporosisOsteoporosis is a disease in which bones become fragile and more likely to break (fracture).
Causes
Osteoporosis is the most common type of bone disease.
Osteoporosis increases the risk for breaking a bone. About one half of all women over the age of 50 will have a fracture of the hip, wrist, or vertebrae (bones of the spine) during their lifetime. Spine fractures are the most common.
Your body needs the minerals calcium and phosphate to make and keep healthy bones.
- During your life, your body continues to both reabsorb old bone and create new bone.
- As long as your body has a good balance of new and old bone, your bones stay healthy and strong.
- Bone loss occurs when more old bone is reabsorbed than new bone is created.
Sometimes, bone loss occurs without any known cause. Other times, bone loss and thin bones run in families. In general, white, older women are the most likely to have bone loss.
Brittle, fragile bones can be caused by anything that makes your body reabsorb too much bone, or keeps your body from making enough new bone. As you age, your body may reabsorb calcium and phosphate from your bones instead of keeping these minerals in your bones. This makes your bones weaker.
A major risk is not consuming enough calcium to build new bone tissue. It is important to eat/drink enough high-calcium foods. You also need vitamin D, because it helps your body absorb calcium. Your bones may become brittle and more likely to fracture if:
- If you do not eat enough food with calcium and vitamin D
- Your body does not absorb enough calcium and vitamin D from your food, such as after gastric bypass surgery or due to other medical conditions
Gastric bypass surgery
Gastric bypass is surgery that helps you lose weight by changing how your stomach and small intestine handle the food you eat. After the surgery, you...
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Other causes of bone loss include:
Causes of bone loss
Osteoporosis, or weak bones, is a disease that causes bones to become brittle and more likely to fracture (break). With osteoporosis, the bones lose...
Read Article Now Book Mark Article- A decrease in estrogen in women at the time of menopause and a decrease in testosterone in men as they age
Menopause
Menopause is the time in a woman's life when her periods (menstruation) stop. Most often, it is a natural, normal body change that occurs between ag...
Read Article Now Book Mark Article - Being confined to a bed due to a prolonged illness (mostly affects bones in children)
- Having certain medical conditions that cause increased inflammation in the body such as Crohn disease or rheumatoid arthritis
- Taking certain medicines, such as certain seizure medicines, hormone treatments for prostate or breast cancer, and steroid medicines taken for more than 3 months
Prostate
Prostate cancer is cancer that starts in the prostate gland. The prostate is a small, walnut-shaped structure that makes up part of a man's reproduc...
Read Article Now Book Mark ArticleBreast cancer
Breast cancer is cancer that starts in the tissues of the breast. There are two main types of breast cancer:Ductal carcinoma starts in the tubes (du...
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Other risk factors include:
- Absence of menstrual periods for long periods of time
- A family history of osteoporosis
- Drinking a large amount of alcohol
- Low body weight
- Smoking
- Having an eating disorder, such as anorexia nervosa
- Certain ethnic groups have a higher rate of low bone mass
Symptoms
There are no symptoms in the early stages of osteoporosis. Many times, people will have a fracture before learning they have the disease.
Fractures of the bones of the spine can cause pain almost anywhere in the spine. These are called compression fractures. They often occur without an injury. The pain may occur suddenly or slowly over time.
Compression fractures
Compression fractures of the back are broken vertebrae. Vertebrae are the bones of the spine.
Read Article Now Book Mark ArticleThere can be a loss of height (as much as 6 inches or 15 centimeters) over time. A stooped posture or a condition called a dowager's hump may develop.
Exams and Tests
A DEXA scan is a low-radiation x-ray that measures the density of the minerals in your bones. Most often, it measures density in the spine and hip bones. Your health care provider uses this test to:
DEXA scan
A bone mineral density (BMD) test measures how much calcium and other types of minerals are in an area of your bone. This test helps your health care...
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- Predict your risk for future bone fractures.
- See how well osteoporosis medicine is working. (The DEXA is most often repeated every 2 years.)
The US Preventive Services Task Force recommends this screening test at least once for women age 65 and older, and for some women younger than age 65 who have an increased risk for osteoporosis. So far, research does not show a need for repeating screening after the test at age 65.
A simple spine or hip x-ray may show fracture or collapse of the spinal bones. However, simple x-rays of other bones are not very accurate in predicting whether you are likely to have osteoporosis. A low-radiation spine x-ray called a vertebral fracture assessment (VFA) can be done with a DEXA to better identify fractures that do not have any symptoms. Trabecular bone score (TBS) can also be performed to gauge bone quality and help evaluate fracture risk.
You may need blood and urine tests if your provider thinks the cause of your osteoporosis is a medical condition, rather than the slow bone loss that occurs with aging.
DEXA scan results compare your bone mineral density with both a young adult who has no bone loss and with people your age and sex. This means that at age 80, almost one third of women with normal age-related bone loss would have osteoporosis, based on their DEXA scan results.
Treatment
Treatment for osteoporosis may involve:
- Making lifestyle changes, such as changing your diet and exercise routine and stopping tobacco or alcohol use
- Taking calcium and vitamin D supplements
- Using medicines
Medicines may be used to strengthen bones when:
- Osteoporosis has been diagnosed by a bone density study, whether or not you have a fracture, and your fracture risk is high.
Bone density study
A bone mineral density (BMD) test measures how much calcium and other types of minerals are in an area of your bone. This test helps your health care...
Read Article Now Book Mark Article - You have had a bone fracture, and a bone density test shows that you have thin bones, but not osteoporosis.
Medicines used to treat osteoporosis include:
Medicines used to treat osteoporosis
Osteoporosis is a disease that causes bones to become brittle and more likely to fracture (break). With osteoporosis, the bones lose density. Bone ...
Read Article Now Book Mark Article- Bisphosphonates -- the main medicines used to prevent and treat osteoporosis in postmenopausal women. They can be given by mouth or by intravenous (IV) injection.
- Denosumab -- lessens bone loss and increases bone density. Given by injection under the skin.
- Teriparatide or abaloparatide -- man-made forms of a hormone your body makes that increases bone density.
- Romosozumab -- a newer medicine for more severe bone thinning.
- Estrogen receptor modulators.
- Calcitonin -- a man-made form of a hormone your body makes that increases bone density. Used mainly to treat the acute pain from a spine fracture.
The length of time a woman should take these medicines depends on her level of risk. Recommendations include:
- Low fracture risk -- 5 years of oral medicine or 3 years of IV therapy
- High fracture risk -- 10 years of oral medicine or 6 years of IV therapy
Exercise plays a key role in preserving bone density in older adults. Some of the exercises recommended to reduce your chance of a fracture include:
Exercise plays a key role in preserving...
Osteoporosis, or weak bones, is a disease that causes bones to become brittle and more likely to fracture (break). With osteoporosis, the bones lose...
Read Article Now Book Mark Article- Weight-bearing exercises, such as walking, jogging, playing tennis, or dancing for at least 30 minutes, three times per week.
- Free weights, weight machines, stretch bands
- Balance exercises, such as tai chi and yoga
- Rowing machines
Avoid any exercise that presents a risk of falling. Also, do not do high-impact exercises that can cause fractures in older adults.
Follow these guidelines for getting enough calcium and vitamin D:
Vitamin D
Vitamin D is a fat-soluble vitamin. Fat-soluble vitamins are stored in the body's fatty tissue and liver.
Read Article Now Book Mark Article- Adults age 50 and under should have 1,000 mg of calcium and 400 to 800 International Units (IU) of vitamin D a day.
- Women ages 51 to 70 should have 1,200 mg of calcium and 400 to 800 IU of vitamin D a day.
- Men ages 51 to 70 should have 1,000 mg of calcium and 400 to 800 IU of vitamin D a day.
- Adults over age 70 should have 1,200 mg of calcium and 800 IU of vitamin D a day.
- Your provider may recommend a calcium supplement.
A calcium supplement
WHO SHOULD TAKE CALCIUM SUPPLEMENTS?Calcium is an important mineral for the human body. It helps build and protect your teeth and bones. Getting en...
Read Article Now Book Mark Article - Follow a diet that provides the proper amount of calcium and vitamin D. Use supplements to make up for the shortage only if your diet does not have the recommended amounts.
- Your provider may recommend higher doses of vitamin D if you have risk factors for osteoporosis or a low level of this vitamin.
(Note: Some expert groups are not sure the benefits and safety of these amounts of vitamin D and calcium outweigh their risks. Be sure to discuss with your provider whether supplements are a good choice for you.)
Stop unhealthy habits:
- Quit smoking, if you smoke.
Quit smoking
There are many ways to quit smoking. There are also resources to help you. Family members, friends, and co-workers may be supportive. But to be su...
Read Article Now Book Mark Article - Limit your alcohol intake. Too much alcohol can damage your bones. Alcohol consumption also puts you at risk for falling and breaking a bone.
It is important to prevent falls by older people. These suggestions can help:
- Do not take medicines that make you drowsy and unsteady. If you must take them, be extra careful when you are up and moving around. For example, hold on to countertops or sturdy furniture to avoid falling.
- Remove household hazards, such as throw rugs, to reduce the risk for falls.
- Leave lights on at night so you can see better when walking around your house.
- Install and use safety grab bars in the bathroom.
- Install antislip flooring in bathtubs and showers.
- Make sure your vision is good. Have your eyes checked once or twice a year by an eye doctor.
- Wear shoes that fit well and have low heels. This includes slippers. Slippers that do not have heels can cause you to trip and fall.
- Do not walk outdoors alone on icy days.
Surgery to treat severe, disabling pain from spinal fractures due to osteoporosis includes:
- Kyphoplasty (a material is placed into a bone of your spine to restore the height of the vertebrae)
Kyphoplasty
Kyphoplasty is used to treat painful compression fractures in the spine. In a compression fracture, all or part of a spine bone collapses. The proc...
Read Article Now Book Mark Article - Spinal fusion (bones of your spine are joined together so they do not move against each other)
Spinal fusion
Spinal fusion is surgery to permanently join together two or more bones in the spine so there is no movement between them. These bones are called ve...
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Outlook (Prognosis)
Medicines to treat osteoporosis can help prevent future fractures. Spine bones that have already collapsed can't be made stronger.
Osteoporosis can cause a person to become disabled from weakened bones. Hip fractures are one of the main reasons people are admitted to nursing homes.
Prevention
Be sure you get enough calcium and vitamin D to build and maintain healthy bones. Following a healthy, well-balanced diet can help you get these and other important nutrients.
Other tips for prevention:
- Do not drink large amounts of alcohol.
- Do not smoke.
- Get regular exercise.
Medicines can treat osteoporosis and prevent fractures. Your provider can tell you if any are right for you.
References
Compston JE, McClung MR, Leslie WD. Osteoporosis. Lancet. 2019;393(10169):364-376. PMID: 30696576 pubmed.ncbi.nlm.nih.gov/30696576/.
De Paula FJA, Black DM, Miller PD, Rosen CJ. Osteoporosis: basic and clinical aspects. In: Melmed S, Auchus, RJ, Goldfine AB, Rosen CJ, Kopp PA, eds. Williams Textbook of Endocrinology. 15th ed. Philadelphia, PA: Elsevier; 2025:chap 29.
Kemmler W, Bebenek M, Kohl M, von Stengel S. Exercise and fractures in postmenopausal women. Final results of the controlled Erlangen Fitness and Osteoporosis Prevention Study (EFOPS). Osteoporos Int. 2015;26(10):2491-2499. PMID: 25963237 pubmed.ncbi.nlm.nih.gov/25963237/.
LeBoff MS, Greenspan SL, Insogna KL, et al. The clinician's guide to prevention and treatment of osteoporosis. Osteoporos Int. 2022; 33(10):2049-2102. PMID: 35478046 pubmed.ncbi.nlm.nih.gov/35478046/.
Shoback D, Rosen CJ, Black DM, Cheung AM, Murad MH, Eastell R. Pharmacological management of osteoporosis in postmenopausal women: an Endocrine Society guideline update. J Clin Endocrinol Metab. 2020;105(3):587-594. PMID: 32068863 pubmed.ncbi.nlm.nih.gov/32068863/.
US Preventive Services Task Force, Grossman DC, Curry SJ, Owens DK, et al. Vitamin D, calcium, or combined supplementation for the primary prevention of fractures in community-dwelling adults: US Preventive Services Task Force Recommendation Statement. JAMA. 2018;319(15):1592-1599. PMID: 29677309 pubmed.ncbi.nlm.nih.gov/29677309/.
US Preventive Services Task Force website. Osteoporosis to prevent fractures: screening. www.uspreventiveservicestaskforce.org/uspstf/recommendation/osteoporosis-screening. Published June 26, 2018. Accessed November 12, 2024.
Osteoporosis
Animation
Osteoporosis
Animation
Compression fracture - illustration
In a compression fracture the body of the bone tissue of the vertebra collapses. This can occur because of trauma or a disease process such as osteoporosis or a tumor.
Compression fracture
illustration
Bone density scan - illustration
A bone density scan measures the density of bone in a person. The lower the density of a bone the higher the risk of fractures. A bone scan, along with a patient's medical history, is a useful aid in evaluating the probability of a fracture and whether any preventative treatment is needed. A bone density scan has the advantage of being painless and exposing the patient to only a small amount of radiation.
Bone density scan
illustration
Osteoporosis - illustration
Osteoporosis is a condition characterized by progressive loss of bone density, thinning of bone tissue and increased vulnerability to fractures. Osteoporosis may result from disease, dietary or hormonal deficiency or advanced age. Regular exercise and vitamin and mineral supplements can reduce and even reverse loss of bone density.
Osteoporosis
illustration
Osteoporosis - illustration
Osteoporosis is a condition characterized by progressive loss of bone density, thinning of bone tissue and increased vulnerability to fractures. Osteoporosis may result from disease, dietary or hormonal deficiency or advanced age. Regular exercise and vitamin and mineral supplements can reduce and even reverse loss of bone density.
Osteoporosis
illustration
Hip fracture - illustration
Hip fractures occur as a result of major or minor trauma. In elderly patients with bones weakened by osteoporosis, relatively little trauma, even walking, may result in a hip fracture.
Hip fracture
illustration
Vitamin D source - illustration
Like most vitamins, vitamin D may be obtained in the recommended amount with a well-balanced diet, including some enriched or fortified foods. In addition, the body manufactures vitamin D when exposed to sunshine, and it is recommended people get 10 to 15 minutes of sunshine 3 times a week.
Vitamin D source
illustration
Calcium benefit - illustration
Calcium requires adequate vitamin D in order to be absorbed by the body. In the United States, many food sources of calcium such as milk are fortified with vitamin D.
Calcium benefit
illustration
Calcium source - illustration
Getting enough calcium to keep bones from thinning throughout a person's life may be made more difficult if that person has lactose intolerance or another reason, such as a tendency toward kidney stones, for avoiding calcium-rich food sources. Calcium deficiency also effects the heart and circulatory system, as well as the secretion of essential hormones. There are many ways to supplement calcium, including a growing number of fortified foods.
Calcium source
illustration
Bone-building exercise - illustration
Exercise plays an important role in the retention of bone density in the aging person. Studies show that exercises requiring muscles to pull on bones cause the bones to retain and possibly gain density.
Bone-building exercise
illustration
Changes in spine with age - illustration
The spine weakens with age, becoming more curved and more fragile.
Changes in spine with age
illustration
Diet and disease prevention - illustration
There have been recent dietary recommendations that have a proven relationship to a disease or health-related condition. For instance, adequate amounts of calcium in the diet are needed for strong teeth and bones and to prevent osteoporosis.
Diet and disease prevention
illustration
Compression fracture - illustration
In a compression fracture the body of the bone tissue of the vertebra collapses. This can occur because of trauma or a disease process such as osteoporosis or a tumor.
Compression fracture
illustration
Bone density scan - illustration
A bone density scan measures the density of bone in a person. The lower the density of a bone the higher the risk of fractures. A bone scan, along with a patient's medical history, is a useful aid in evaluating the probability of a fracture and whether any preventative treatment is needed. A bone density scan has the advantage of being painless and exposing the patient to only a small amount of radiation.
Bone density scan
illustration
Osteoporosis - illustration
Osteoporosis is a condition characterized by progressive loss of bone density, thinning of bone tissue and increased vulnerability to fractures. Osteoporosis may result from disease, dietary or hormonal deficiency or advanced age. Regular exercise and vitamin and mineral supplements can reduce and even reverse loss of bone density.
Osteoporosis
illustration
Osteoporosis - illustration
Osteoporosis is a condition characterized by progressive loss of bone density, thinning of bone tissue and increased vulnerability to fractures. Osteoporosis may result from disease, dietary or hormonal deficiency or advanced age. Regular exercise and vitamin and mineral supplements can reduce and even reverse loss of bone density.
Osteoporosis
illustration
Hip fracture - illustration
Hip fractures occur as a result of major or minor trauma. In elderly patients with bones weakened by osteoporosis, relatively little trauma, even walking, may result in a hip fracture.
Hip fracture
illustration
Vitamin D source - illustration
Like most vitamins, vitamin D may be obtained in the recommended amount with a well-balanced diet, including some enriched or fortified foods. In addition, the body manufactures vitamin D when exposed to sunshine, and it is recommended people get 10 to 15 minutes of sunshine 3 times a week.
Vitamin D source
illustration
Calcium benefit - illustration
Calcium requires adequate vitamin D in order to be absorbed by the body. In the United States, many food sources of calcium such as milk are fortified with vitamin D.
Calcium benefit
illustration
Calcium source - illustration
Getting enough calcium to keep bones from thinning throughout a person's life may be made more difficult if that person has lactose intolerance or another reason, such as a tendency toward kidney stones, for avoiding calcium-rich food sources. Calcium deficiency also effects the heart and circulatory system, as well as the secretion of essential hormones. There are many ways to supplement calcium, including a growing number of fortified foods.
Calcium source
illustration
Bone-building exercise - illustration
Exercise plays an important role in the retention of bone density in the aging person. Studies show that exercises requiring muscles to pull on bones cause the bones to retain and possibly gain density.
Bone-building exercise
illustration
Changes in spine with age - illustration
The spine weakens with age, becoming more curved and more fragile.
Changes in spine with age
illustration
Diet and disease prevention - illustration
There have been recent dietary recommendations that have a proven relationship to a disease or health-related condition. For instance, adequate amounts of calcium in the diet are needed for strong teeth and bones and to prevent osteoporosis.
Diet and disease prevention
illustration
- Osteoporosis(Alt. Medicine)
- Osteoporosis - InDepth(In-Depth)
- Osteoporosis medications - bisphosphonate derivatives(Alt. Medicine)
Review Date: 1/25/2023
Reviewed By: Neil J. Gonter, MD, Assistant Professor of Medicine, Columbia University, NY and private practice specializing in Rheumatology at Rheumatology Associates of North Jersey, Teaneck, NJ. Review provided by VeriMed Healthcare Network. Internal review and update on 01/25/2024 by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. Editorial update 11/15/2024.