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Published on: 8/18/2026

Adult Rickets Symptoms: What to Track

Adult rickets, called osteomalacia, softens the bones and usually begins as dull, aching bone pain in the hips, lower back, pelvis, ribs, and legs, along with muscle weakness that makes stairs, standing, and walking harder. Worth tracking daily: where the pain sits and when it worsens, tenderness when you press on a bone, a waddling or unsteady gait, muscle cramps or spasms, unusual fatigue, height loss, and any fracture from a minor bump or fall. Also log contributing factors such as limited sun exposure, low vitamin D or calcium intake, celiac or other malabsorption conditions, bariatric surgery, kidney or liver disease, and long-term use of certain seizure or antacid medications, because there are several factors to consider. See below to understand more, including how these clues are sorted from look-alike conditions.

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Explanation

Adult Rickets Symptoms: What to Track

Rickets is often thought of as a childhood condition, but it can affect adults when vitamin D, calcium or phosphate levels are too low. If you’re experiencing unexplained aches, bone pain or weakness, it’s important to know which signs suggest adult rickets and when to get medical advice.

Why Adult Rickets Happens

Adult rickets (osteomalacia) results from inadequate mineralization of bone. Common causes include:

  • Low vitamin D intake or absorption (due to diet, kidney/liver disease, certain medications)
  • Insufficient sun exposure
  • Malabsorption disorders (celiac disease, Crohn’s disease)
  • Phosphate loss (due to kidney problems or genetic conditions)

Without enough vitamin D, the body can’t absorb calcium and phosphate properly, leading to soft, fragile bones.

Key Symptoms to Track

Tracking early symptoms helps you and your doctor intervene before complications develop. Note any of the following:

1. Bone Pain and Tenderness

  • Dull, aching pain deep in the hips, pelvis, lower back or legs
  • Pain may worsen at rest or at night
  • Tender spots when pressing on the sternum, ribs or shinbones

2. Muscle Weakness

  • Difficulty climbing stairs or rising from a chair
  • Waddling gait (walking with feet wide apart)
  • General fatigue, especially in the shoulders, hips and thighs

3. Fractures and Stress Fractures

  • Small cracks in weight-bearing bones (feet, legs) from minor stress
  • Unexplained fractures after minimal trauma

4. Bone Deformities (Less Common in Adults)

  • Pelvic deformities leading to hip pain or altered gait
  • Bowing of the legs or arms (more typical in severe, long-standing cases)

5. Dental Issues

  • Tooth decay or delayed tooth eruption
  • Weak tooth enamel

6. Neurological Symptoms (Rare)

  • Numbness or tingling around the mouth, hands or feet
  • Muscle cramps or spasms

How to Monitor Your Symptoms

Keeping organized records of your symptoms makes follow-up easier:

  1. Create a daily log noting:

    • Pain intensity (scale of 1–10)
    • Location of pain or tenderness
    • Episodes of muscle weakness (time of day, activities)
    • Any falls or fractures
  2. Track lifestyle factors:

    • Sun exposure (minutes per day, body areas exposed)
    • Vitamin D–rich foods consumed (eggs, fatty fish, fortified dairy)
    • Supplements taken (dose, frequency)
  3. Photograph physical changes:

    • Gait (have a friend or family member record short videos)
    • Posture or any visible deformity
  4. Record lab and imaging results:

    • Dates and values for serum vitamin D, calcium, phosphate, alkaline phosphatase
    • Bone density scans or X-ray reports

When to Seek Medical Attention

Although adult rickets progresses slowly, some signs require prompt evaluation:

  • Sudden, severe bone pain or inability to bear weight
  • New or worsening muscle weakness that limits daily activities
  • Signs of fracture (swelling, bruising after minor injury)
  • Numbness, tingling or spasms suggesting low calcium levels

If you experience any of these, speak with your doctor right away. For initial guidance, you might try a free, online symptom check, using the doctor approved Ubie Symptom Checker](https://ubiehealth.com/) to help determine urgency.

Diagnosis and Tests

Your doctor will review your history, perform a physical exam and order tests to confirm adult rickets:

  • Blood tests: 25-hydroxyvitamin D, calcium, phosphate, alkaline phosphatase
  • Urine tests: phosphate excretion
  • Bone density scan (DXA) to assess bone strength
  • X-rays to look for pseudofractures (Looser’s zones)

Treatment Overview

Adult rickets treatment focuses on correcting deficiencies and addressing underlying causes:

  1. Nutritional Therapy

    • Vitamin D supplementation (dose based on deficiency severity)
    • Adequate calcium intake (dietary or supplements)
  2. Sunlight Exposure

    • Safely increase UVB exposure (10–30 minutes several times weekly on arms/legs)
    • Follow skin-cancer prevention guidelines
  3. Treat Underlying Conditions

    • Adjust medications that interfere with vitamin D metabolism
    • Manage malabsorption with pancreatic enzymes or dietary modifications
  4. Physical Therapy

    • Strength-building exercises for core, hips and legs
    • Balance training to reduce fall risk
  5. Monitoring

    • Repeat lab tests every 3–6 months until levels normalize
    • Periodic bone density assessments

Prevention and Lifestyle Tips

While treating adult rickets, you can also adopt habits to protect your bones:

  • Eat a balanced diet rich in calcium and vitamin D
  • Spend time outdoors in natural sunlight
  • Maintain a healthy weight to minimize joint stress
  • Avoid smoking and limit alcohol intake
  • Engage in weight-bearing exercises (walking, jogging, resistance training)

When to Follow Up

Regular follow-up is crucial. Schedule visits every 3–6 months until lab values and symptoms improve. After that, an annual check may suffice. Ask your doctor if you need referrals to specialists such as an endocrinologist or rheumatologist.

Final Thoughts

Adult rickets is treatable, but early recognition of symptoms is key. By tracking pain, weakness, lifestyle factors and lab results, you’ll give your healthcare provider the best chance to correct deficiencies and prevent complications.

If you’re uncertain about your symptoms or severity, consider a free, online symptom check, using the doctor approved Ubie Symptom Checker](https://ubiehealth.com/) for guidance on next steps.

Above all, if you experience severe pain, sudden weakness, fractures or any life-threatening signs, speak to a doctor immediately. Early intervention can make all the difference in restoring bone health and quality of life.

(References)

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  • * Jan de Beur SM, Minisola S, Xia WB, Abrahamsen B, Body JJ, Brandi ML, Clifton-Bligh R, Collins M, Florenzano P, Houillier P, Imanishi Y, Imel EA, Khan AA, Zillikens MC, Fukumoto S. Global guidance for the recognition, diagnosis, and management of tumor-induced osteomalacia. J Intern Med. 2023 Mar;293(3):309-328. doi: 10.1111/joim.13593. Epub 2022 Dec 13. PMID: 36511653; PMCID: PMC10108006.

  • * Ito N, Fukumoto S. Tumor-induced rickets/osteomalacia (TIO): diagnostic pitfalls and therapeutic options. J Bone Miner Res. 2025 May 24;40(5):572-576. doi: 10.1093/jbmr/zjaf047. PMID: 40156290.

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