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Early or Missed Symptoms of Hidradenitis Suppurativa

Medically reviewed by Raj Chovatiya, MD, PhD, MSCI
Written by Zoe Owrutsky, Ph.D.
Updated on May 1, 2026

Key Takeaways

  • Hidradenitis suppurativa, or HS, is a chronic skin condition that often starts with mild symptoms and can greatly affect a person's quality of life if it goes untreated.
  • View full summary

Hidradenitis suppurativa (HS) often begins subtly but can significantly affect your quality of life if left untreated. Recognizing early symptoms is crucial, as prompt intervention may help prevent complications and support better long-term management of this chronic skin condition.

This article explores the earliest signs of HS, common misinterpretations of its symptoms, and why early diagnosis matters.

Earliest Signs and Symptoms of Hidradenitis Suppurativa

HS often begins with mild symptoms that can be easy to overlook or misinterpret. Knowing what to watch for can help you catch it early and seek medical advice.

Small, Painful Lumps

One of the first indications of HS involves small, painful lumps (also called nodules) that form under the skin.

The lumps are often tender to the touch and may be mistaken for pimples, cysts, or boils. They range in size and tend to develop where skin touches skin, like the armpits, groin, and genital area.

Initially, these lumps are about the size of a pea and feel hard. They may be discolored and feel warm.

Over time, they can grow and become more painful, eventually turning into abscesses (pockets of pus caused by infection) that can rupture and leak fluid.

Blackheads

Clusters of blackheads, which often appear in a pattern such as a double-headed blackhead, can be an early HS symptom.

The blackheads might not be painful, but finding them in areas like the armpits or groin can be a clue.

Itching and Discomfort

You might experience persistent itching or discomfort in areas like the armpits, thighs, or groin before you notice any lumps or bumps.

Itching is often an early indicator of HS because it suggests underlying irritation in the skin. The discomfort may be mild at first but becomes more bothersome as the condition progresses.

Discharge With an Odor

Eventually, the lumps may break open and release an odorous discharge. This mixture of pus and blood indicates that the condition is becoming more severe.

When HS abscesses burst, the fluid released can have a strong odor. This symptom may make some people feel embarrassed or worry about being around others.

Tunnels Under the Skin

In more advanced HS stages, tunnels can form under the skin, connecting the lumps and abscesses. Known as sinus tracts, HS tunnels can be painful and may become infected.

Early signs of tunnel formation include a feeling of pressure or fullness under the skin. The developing tunnels can cause significant discomfort and make the skin more prone to infections.

Early Symptoms That May Be Misinterpreted

Because HS symptoms can look like those of other conditions, they’re often misinterpreted. Here are some common ways early HS symptoms are mistaken for other issues.

Acne

HS is also called acne inversa, but it’s different from acne. Acne, or acne vulgaris, usually consists of blackheads, whiteheads, and inflamed pimples on the face, back, and chest.

HS is often confused with acne because both conditions can cause pimples and cysts. However, HS typically occurs as larger, more painful, deeper lumps in areas where acne is less common, such as the armpits and groin.

Ingrown Hairs

Ingrown hairs occur when a hair curls back into the skin. They typically appear as small, discolored, raised bumps that may be itchy or painful, and sometimes you can see the hair trapped beneath the skin.

These ingrown hairs are often found in areas that have been shaved or waxed, such as the legs, armpits, and bikini line.

Many people mistake HS for ingrown hairs, especially when they appear where hair removal is common. Unlike ingrown hairs, HS lumps don’t improve on their own and can lead to more serious complications.

Additionally, HS — but not ingrown hairs — can produce multiple interconnected lumps or tunnels.

Boils

Boils are painful, pus-filled lumps that typically look like a single lesion. They can occur anywhere, but are most common on the:

  • Face
  • Neck
  • Armpits
  • Shoulders
  • Buttocks

Boils often burst and drain spontaneously or require lancing by a healthcare provider. HS, on the other hand, involves multiple, recurrent lumps that don’t heal completely and can form sinus tracts.

HS is often mistaken for boils, but boils are usually caused by bacterial infections. Boils caused by an infection are contagious, but HS is not. HS is a chronic condition that requires long-term management.

Boils caused by an infection are contagious, but HS is not.

Folliculitis

Folliculitis causes small bumps that can look like pimples. They form where hair grows and may be discolored or filled with pus. This condition can be caused by:

  • Bacterial or fungal infections
  • Irritation from shaving
  • Blocked hair follicles.

Folliculitis can look similar to HS, particularly in the early stages. However, folliculitis usually affects individual follicles, whereas HS causes larger, deeper lumps and can be more severe.

Importance of Early Diagnosis of Hidradenitis Suppurativa

If you think you might have HS, it’s important to consult with a dermatology specialist about treatment options as soon as possible. An early diagnosis is crucial for several reasons.

Preventing Symptoms From Worsening

HS is a progressive condition, meaning it tends to get worse over time if not properly managed. Early diagnosis and treatment can help slow down or even halt the progression, reducing the risk of complications like extensive scarring.

Relieving Pain and Discomfort

Early intervention can significantly reduce the pain and discomfort of HS. Treatments can help manage inflammation, help heal lesions, and prevent new lesions from forming.

Early intervention can significantly reduce the pain and discomfort of HS. Treatments can help manage inflammation, help heal lesions, and prevent new lesions from forming.

Improving Quality of Life

HS can have a profound impact on quality of life, affecting physical, emotional, and social well-being. Early diagnosis and appropriate management can help people with HS maintain a more active and fulfilling lifestyle.

Avoiding Misdiagnosis

Since HS symptoms can be mistaken for other conditions, early diagnosis by a knowledgeable dermatologist is essential. The proper diagnosis can prevent unnecessary treatments and the frustration of not knowing the true cause of your symptoms.

Recognizing the early signs of HS and seeking a prompt diagnosis are crucial steps in managing this chronic condition. If you notice symptoms such as small, painful lumps or persistent itching, check in with your healthcare team. Early diagnosis can help you find relief, manage symptoms, and prevent worsening of the condition.

Remember, you don’t have to face HS alone — support and resources are available to help you navigate your journey.

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On myHSteam, people share their experiences with hidradenitis suppurativa, get advice, and find support from others who understand.

What early or missed symptoms of HS have you experienced? Let others know in the comments below.

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