A doctor will typically perform a physical exam and ask about your medical history. Diagnostic tools may include:
Armpit Lump: Causes, Diagnosis & Treatment - Cleveland Clinic
While often benign, recurring or painful swollen sweat glands in the armpits—especially with deep, boil-like lumps—may indicate hidradenitis suppurativa, which requires medical management. Do not try to squeeze or pop these lumps, as this can worsen inflammation and lead to scarring.
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