Modifiers matching swelling:

• painful,
• scrotal,
• acute,
• lingual,
• superficial,

Simple categories matching painful:

• condition,
• feelings,
• change,
• situation,
• procedure,
• intervention,
• sensation,
• lump,
• investigation,
• symptom,
• lesion,
• tumor,
• task,
• emotion,
• disease,
• consequence,
• state,
• measure,
• way,
• incident,
• malady,
• discomfort,
• thing,
• neuropathy,
• illness,
• event,
• complication,
• action,
• area,
• disturbance,
• movement,
• practice,
• therapy,
• treatment,
• affection,
• transition,
• disorder,
• episode,
• issue,
• feeling,
• syndrome,
• swelling,
• experience,
• affliction,
• test,
• stimulus,
• effect,
• mind,
• process,
• structure,
• pathology,
• surgery,
• problem,
• entity,
• period,