Swollen Sweat Gland - Under Armpit

Attempting to "pop" a swollen gland can push the infection deeper into the tissue, leading to scarring or a more severe infection. When to See a Doctor

Finding a lump under your arm can be unsettling, but it is often a treatable issue related to local skin irritation or the immune system . When a "swollen sweat gland" is the culprit, it usually involves a blockage or infection of the hair follicle or gland, though it is important to distinguish it from a swollen lymph node. Cleveland Clinic +3 Potential Causes Blocked Sweat Gland or Follicle: Often caused by shaving, friction, or using certain antiperspirants, leading to a painful, red lump similar to a large pimple. Hidradenitis Suppurativa (HS): A chronic condition that causes recurring, painful boil-like lumps in areas with sweat glands, such as the armpits. Axillary Abscess: A collection of pus under the skin that develops when bacteria infect a sweat gland or hair follicle. Swollen Lymph Gland: These feel deeper and more "mobile" than skin-surface lumps and typically enlarge when your body is fighting a nearby infection (like a cold or a skin cut). Cleveland Clinic +7 Key Characteristics to Monitor 16 sites What do Swollen Lymph Nodes in the Armpit indicate? - Vinmec Jun 13, 2025 —

A chronic condition that causes recurring, painful bumps under the skin that may leak fluid or tunnel into deeper layers. swollen sweat gland under armpit

You see signs of a spreading infection, such as red streaks coming from the lump. The area is draining pus or has a foul odor. You have a persistent fever or feel generally unwell.

This is for informational purposes only. For medical advice or diagnosis, consult a professional. AI responses may include mistakes. Learn more Attempting to "pop" a swollen gland can push

Benign sacs filled with fluid or keratin can form and become inflamed if irritated. How to Identify the Problem

A "swollen sweat gland" under the armpit is a common complaint, but it is often misidentified by patients. There are several distinct medical conditions that can cause lumps, bumps, and swelling in this area. Cleveland Clinic +3 Potential Causes Blocked Sweat Gland

| Condition | Pain Level | Appearance | Duration | | :--- | :--- | :--- | :--- | | | High (Deep pain) | Deep lumps, blackheads, scarring | Chronic (Months/Years) | | Abscess/Boil | High (Throbbing) | Red, hot, pus-filled | Acute (Days) | | Lymph Node | Mild/Moderate | Firm, deep under skin | Weeks (varies by cause) | | Cyst | Low (unless infected) | Smooth, whitish/yellowish | Months/Years |

Staph bacteria often thrive in warm, moist environments like the armpit, leading to boils or abscesses.