What causes osteoporosis?
Osteoporosis happens when your body breaks down old bone faster than it can replace it. Several factors can contribute to this imbalance.
Hormones play a key role in keeping bones strong. Changes in hormone levels can lead to bone loss. They include:
- Low estrogen levels after menopause, in people assigned female at birth
- Low testosterone levels, in people assigned male at birth
- Long gaps between menstrual periods (amenorrhea)
Osteoporosis can affect anyone, but some people face a higher risk due to inherited traits or demographic factors. These include:
- Family history of osteoporosis
- Being of white or Asian descent
- Being over age 50
Without the right nutrients, your bones can weaken over time. These nutrition-related factors can raise your risk of osteoporosis:
- Not getting enough calcium or vitamin D
- Trouble absorbing nutrients after surgery like a gastric bypass
- Eating disorders like anorexia nervosa
Certain medical conditions and long-term use of specific medications can increase your risk of osteoporosis, including:
- Inflammatory conditions like Crohn’s disease or rheumatoid arthritis
- Disorders involving the thyroid or pituitary gland
- Long-term use of seizure medications, corticosteroids, or hormone treatments for prostate cancer or breast cancer
Your daily habits and life circumstances can also raise your risk, including:
- Smoking
- Heavy alcohol use
- Low body weight
- Lack of physical activity or long periods of bed rest