# Hidradenitis Suppurativa Under the Breast

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Language: en
Category: Diagnosis
Published: 2026-05-21
Last updated: 2026-05-21
Author: Dr. rer. nat. Dennis Alexander Kwiatkowski (Biochemist, Scientific Writer and Pharma Expert)
Tags: Acne Inversa, Hidradenitis Suppurativa, HS, Diagnosis, inframammary fold, hidradenitis suppurativa, acne inversa, symptoms

> Under the breast, recurring painful lesions can fit with hidradenitis suppurativa. This article puts symptoms, friction and helpful observations for your appointment into context.

Medical disclaimer: This website is for general educational information only and does not replace medical advice, diagnosis, or treatment. Please speak with qualified medical professionals about symptoms or treatment decisions.

## Article

## A typical site that often causes practical burden

The inframammary fold — the skin crease under the breast — is one of the typical regions for hidradenitis suppurativa. Symptoms there can become especially noticeable due to skin-on-skin contact, moisture, bra edges or questions around dressings.

## What can fit with HS in this area

Possible signs include recurring:

- deep painful nodules,
- abscesses or open weeping areas,
- scars and indurations after inflammation,
- symptoms together with involvement of the [armpits](/en/blog/acne-inversa-unter-den-achseln/), [groin](/en/blog/acne-inversa-in-der-leiste/) or [buttocks](/en/blog/acne-inversa-am-po/).

The location alone does not prove a diagnosis. Especially within skin folds, there are various causes for redness and irritation. Recurring deep inflammatory lesions should therefore be described factually and assessed professionally. For a broader overview of possible signs, see the article on [hidradenitis suppurativa symptoms to look out for](/en/blog/acne-inversa-symptome-worauf-achten/).

## Why daily life quickly comes into play here

Under the breast, even a small open lesion can influence many decisions: which clothing fits, whether friction increases, how secure a dressing feels and whether odour or drainage cause concern.

These practical points are not minor matters. They show what kind of support is actually needed in everyday life.

## What you can document

Note down:

1. whether the lesions recur,
2. whether they hurt deeply or rather irritate superficially,
3. whether drainage, scars or sinus tracts are noticeable,
4. which clothing or movement increases the burden.

This way, an appointment can distinguish between location, course and burden. It can be helpful to look at [15 questions to ask your dermatologist](/en/blog/15-questions-to-ask-your-dermatologist/) in advance.

## When medical assessment becomes important

Recurring painful nodules under the breast deserve dermatological attention. Rapidly increasing redness, fever, severe pain or a worsening wound should be evaluated promptly.

## FAQ

### Is the inframammary fold a typical site for hidradenitis suppurativa?

Yes, the inframammary fold is one of the regions where hidradenitis suppurativa can occur. Friction, moisture and skin-on-skin contact are particularly pronounced there. However, the location alone does not prove a diagnosis and should be assessed professionally.

### How does hidradenitis suppurativa differ from a simple rash under the breast?

Hidradenitis suppurativa often presents with deep, recurring painful nodules, abscesses, drainage, sinus tracts or scars. A simple rash usually remains superficial. Distinguishing between them belongs in dermatological hands.

### Which observations help during a medical appointment?

Helpful notes include whether the lesions recur, how deeply they hurt, whether drainage or scars occur, and which clothing or movement makes the symptoms worse.

### When should I seek prompt medical help?

Rapidly increasing redness, fever, severe pain or a clearly worsening wound should be evaluated by a doctor promptly.

## References

1. S2k Guideline for the Treatment of Hidradenitis Suppurativa / Acne Inversa - AWMF, 2024 - https://register.awmf.org/assets/guidelines/013-012l_S2k_Therapie-Hidradenitis-suppurativa-Acne-inversa_2024-08.pdf
2. Hidradenitis Suppurativa - U.S. Food and Drug Administration, 2024 - https://www.fda.gov/consumers/health-education-resources/hidradenitis-suppurativa