Painful Underarm and Groin Nodules Consistent With Hidradenitis Suppurativa
Does anything seem to trigger flare-ups, such as friction, stress, or heat?

Does anything seem to trigger flare-ups, such as friction, stress, or heat?
Have you noticed any drainage, odor, or tunnels forming under the skin?
When these nodules appear, do they usually occur in the same areas?
You may lightly cover it if it tends to catch or bleed, but avoid anything adhesive that irritates the skin—gentle protection is enough until your visit.
Thank you for sharing this, and thank you for the details and the photograph (not shown for privacy). Based on your description, the most consistent diagnosis is a basal cell carcinoma, which often presents as a pearly, slow-growing nodule on sun-exposed areas. Conditions such as sebaceous hyperplasia (which typically shows yellowish lobules), amelanotic melanoma (which […]
Have you had similar spots in the past or any diagnosed skin cancers?
Is this area often exposed to the sun?
Have you noticed any bleeding, crusting, or pain?
When did you first notice this nodule, and has it changed in size or texture?
Try to maintain necessary hygiene but use gentler cleansers and moisturize immediately afterward — small adjustments can reduce irritation without compromising cleanliness.