Category Nuances for back_problem:

• costly,
• medical,
• skeletal,
• chronic,
• unpleasant,
• musculoskeletal,
• common,
• debilitating,
• special,
• minor,
• orthopedic,
• episodic,
• neurological,
• joint,
• functional,
• healing,

Simple Categories for back_problem:

• situation,
• condition,
• problem,
• power,