Scoliosis is a condition in which a person's spine has an abnormal curve. The curve is usually S- or C-shaped over three dimensions. In some, the degree of curve is stable, while in others, it increases over time. Mild scoliosis does not typically cause problems, but more severe cases can affect breathing and movement. Pain is usually present in adults, and can worsen with age. As the condition progresses, it may alter a person's life, and hence can also be considered a disability.

मेरुवक्रता या स्कोलिओसिस (scoliosis) के रोग के कारण मेरुदण्ड सीधी न रहकर किसी एक तरफ झुक जाती है। इससे ज्यादातर छाती और पीठ के नीचे के हिस्से प्रभावित होते हैं। इसे 'रीढ़ वक्रता' या 'पार्श्वकुब्जता' भी कहते हैं।