Thalassaemia
Thalassemias are a group of inherited blood disorders that manifest as the production of reduced . Symptoms depend on the type of and can vary from none to severe, including death. Often there is mild-to-severe , as thalassemia can affect the production of red blood cells and also affect how long the red blood cells live. Symptoms include tiredness, pallor, bone problems, an enlarged , , , and dark urine. A child's growth and development may be slower than normal.
Underlined words are explained — tap any of them.
Symptoms — what it feels like
- ·Feeling tired, pale skin, enlarged , yellowish skin, dark urine
How it's found
- ·Blood tests, tests
Treatment
- ·Blood , iron chelation, folic acid
How common each gene variant is, by ancestry
The share of people carrying the effect version of each variant. South Asian is highlighted; where it differs from European, a risk model built on Europeans can misread it.
Effect-allele frequencies. All-India is the pooled large-sample number from GenomeIndia (≈10,000 Indian genomes); the South-Asian row is the smaller 1000 Genomes phase-3 panel, kept for finer per-subpopulation resolution.
The sections below are general education drawn from public guidelines (NHS, Mayo, CPIC, WHO, ICMR). They are not individually reviewed by a clinician and are not medical advice — always talk to a doctor about your own health.
When to see a doctor
See a doctor if you or your child are often pale, tired, slow to grow, or short of breath, or if anaemia keeps returning despite iron. If thalassaemia runs in either family, ask about carrier testing before planning children.
Get urgent care for severe breathlessness, a fast or pounding heart, fainting, or a swollen, painful tummy. These can signal severe anaemia or complications needing quick treatment.
General guidance, not a diagnosis. When in doubt, see a doctor.
Questions to ask your doctor
- ?Which blood tests confirm this and show the type and severity?
- ?Are my partner and I carriers, and what does that mean for children?
- ?Do I actually need iron, or could that be harmful for me?
- ?What ongoing monitoring will be needed?
- ?Which symptoms mean I should seek care quickly?
- ?Should other family members be tested?
What to note before your visit
- ·when tiredness or pale skin began
- ·family history of thalassaemia or anaemia
- ·past blood tests or transfusions
- ·current medicines and iron supplements
Across the other high- (india) gene set (), 5 -'' are actually seen in South Asians () - many European-absent and still clinically 'uncertain'. For , that's a pool of computationally-damaging, India-relevant, clinically-unresolved variants no one has systematically characterised.
A study that would help: Take the South-Asian-observed, European-absent, ClinVar-uncertain in and them for : functional or family segregation to move them from 'uncertain' to a real call. Each is a usable diagnostic result.