India's 'Bone-Crushing Disease': A Hidden Crisis

Sickle cell disease (SCD), first identified in India's Nilgiris in 1952, persists among the region's tribal populations. This inherited blood disorder, locally termed the "bone-crushing disease," causes severe pain, anaemia, and organ damage. Consanguineous marriages among certain communities increase the risk of affected children.

Recent research suggests SCD in the Nilgiris and Wayanad may be milder than in central Indian tribes. However, a comprehensive understanding of its prevalence and the influence of genetic factors, nutrition, and environment requires larger studies. Public health data from the past eight years indicates 340 SCD cases and 1,650 sickle cell trait cases identified through screening tribal communities.

Organizations like Ashwini and Nawa are actively involved in health education, reproductive-age screening, and newborn screening, battling cultural stigmas. Earlier healthcare initiatives provided mobile medical vans, genetic counselling, and treatment. The district public health department is now expanding screening to include non-tribal communities, such as the Badaga community.

Technological advancements, like an AI system developed in 2025, have demonstrated 98% accuracy in classifying sickle cell anaemia using red blood cell images. While this aids early diagnosis, identifying true prevalence requires widespread screening. India's National Sickle Cell Anaemia Elimination Mission, launched in 2023-24, aims to screen seven crore individuals by 2026 and eliminate the disease by 2047.