Iliac Crest Pain and Lump: Medical Evaluation Needed

There is no specific diagnosis of "painful lump on the iliac crest." A palpable mass with pain in this region could represent:

• Lipoma or sebaceous cyst
• Iliac crest bone tumor (rare)
• Hernia (Spigelian, incisional)
• Muscle strain/tear (e.g., abdominal wall)
• Referred pain from spine, hip, or pelvis
• Hematoma from trauma

Self-diagnosis is unreliable. See a physician for examination, imaging (ultrasound, MRI), and appropriate management.