Overview
Bones get soft from too little vitamin D or calcium.
Rickets is the name in children.
Symptoms
Common signs:
- Bone pain
Less common
- Bowed legs in kids
- Muscle weakness
Look up a symptom: Bone loss, or a broken bone from a minor fall · Bone pain that's constant or worse at night, or a lump on a bone or deep in a muscle · Little sun, or told my vitamin D is low · Muscle weakness in arms or legs
When to get medical care
Causes
Low vitamin D.
Does it spread or run in families?
- It isn't contagious. You can't catch it from someone else.
Who is more likely to get it
- Dark skin
- Breastfed babies without vitamin D
Diagnosis
A clinician asks about your symptoms and may order tests.
The exam
A physical exam.
Tests
Tests, if needed:
- Blood tests:
- X-ray:
Treatment
Treatment depends on the cause and how severe it is.
Self-care
- Vitamin D and calcium
- Some sunlight
Prevention
To lower your risk or catch problems early:
- Vitamin D drops for breastfed babies
- Get vitamin D
Which doctor treats this
- Start with your primary care provider (family doctor or internist).
- They may send you to an orthopedist (bone and joint doctor).
- A physical therapist can help with exercises to rebuild strength and motion.
Living with it
Support groups and helplines
- Genetic and Rare Diseases Information Center (GARD): Free NIH information on rare diseases, including where to find experts and patient groups.
- National Organization for Rare Disorders (NORD): Patient groups, help finding care, and aid programs for rare diseases.
Children, pregnancy, and older adults
- Babies only breastfed: May need vitamin D.
Pregnancy and breastfeeding
- If you're pregnant or planning to be, tell your prenatal provider about this condition.
- Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
- Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
- Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.
Outlook
Outlook depends on the cause; early care helps.
Getting ready for your visit
Bring a list of your symptoms and medicines.
What to bring
- A list of your medicines and supplements
- Notes on when symptoms started and what makes them better or worse
Questions to ask
- What's causing this?
- What treatment do you recommend?
Research studies
Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.
Search ClinicalTrials.gov for studies on Rickets and soft bones (osteomalacia)
Sources
Last updated 2026-11-12.