Deep granuloma annulare: what to know

Granuloma annulare is a non-contagious inflammatory reaction in the skin. The deep form can feel like firm, smooth or rubbery lumps beneath the surface, sometimes with little visible redness or scaling. It may occur on the backs of the hands or feet, near joints, or in other areas. Because a deeper lump can resemble a cyst, infection, or another growth, appearance alone cannot confirm the diagnosis. A clinician may examine its depth and pattern and may recommend a skin sample when the diagnosis is uncertain.

The condition is not caused by poor hygiene and it cannot be spread by touch. Some lesions settle without treatment, while others persist or return. The appropriate plan depends on location, symptoms, number of lesions, and diagnostic confidence.

Do not squeeze, puncture, or repeatedly massage a firm bump. Photographing changes and noting tenderness, growth, or reduced joint movement can help at an appointment. If treatment is appropriate, a dermatologist may discuss a corticosteroid applied to the skin for suitable superficial areas or a steroid injection into an individual lesion. These options have different uses and possible effects, so treatment should match the depth and location. See [Topical Corticosteroids](/treatments/medical-dermatology/topical-corticosteroids/) and [Steroid Injection Into The Skin](/treatments/injectables/intralesional-steroid-injection/).

Arrange an assessment for a new, enlarging, painful, warm, draining, or bleeding lump, especially if it limits movement. Seek prompt care if several lesions appear with fever or you feel generally unwell. A rapidly changing lump should not be assumed to be granuloma annulare, even when it resembles a previous lesion. Urgent help is appropriate for severe pain, marked swelling, or signs of a spreading infection.

Ask whether the lump’s depth and appearance fit granuloma annulare, whether a biopsy or other test is useful, and what alternatives should be excluded. Discuss observation versus treatment, the expected skin response to a steroid, possible lightening or thinning at an injection site, and when to return if the lesion changes.