What is the difference between kyphosis and lordosis?

Kyphosis and lordosis refer to different types of spinal curvatures, each characterized by their specific orientation and degree of curvature. Kyphosis is described as an exaggerated outward curvature of the thoracic spine, resulting in a hunchback appearance. This condition typically occurs in the upper back and can be a result of various factors including poor posture, aging, or medical conditions affecting the spine.

In contrast, lordosis is characterized by an exaggerated inward curvature of the lumbar spine, typically leading to a swayback appearance. This condition affects the lower back and can result from factors such as obesity, pregnancy, or muscle imbalances.

Understanding the nature of these curvatures is crucial for diagnosing and treating related spinal issues. Recognizing that kyphosis involves an outward curve while lordosis involves an inward curve helps in assessing posture and implementing appropriate interventions in clinical practice. Thus, the distinction made in the answer reflects a fundamental aspect of spinal anatomy and health.