HomeAnswersDermatologyaxillary lumpWhat causes a painless immovable small lump under the armpit?

I have a painless immovable small lump under the armpit. Should I worry about that?

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The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Answered by

Dr. Shama Naaz

Medically reviewed by

Dr. Vinodhini J.

Published At November 28, 2020
Reviewed AtJanuary 31, 2024

Patient's Query

Hello doctor,

I noticed a small lump under my armpit. It is painless, and its color is the same as my skin. It is hard and does not move when touched. I have no fever. I am aware that some family members also have lumps (my uncle and brother on their back, my father on the bottom part of his neck). My mother told me to stop using deodorant. Am I having the same kind of lump as what other members of my family have? Should I be worry or not?

Answered by Dr. Shama Naaz

Hi,

Welcome to icliniq.com.

A lump can be caused due to several reasons like folliculitis, sebaceous cyst, skin tag, lipoma, neurofibroma, etc. Can you tell for how long you have this lump? And send me a picture for further diagnosis.

Patient's Query

Thank you doctor,

This is my first time getting such a lump. I noticed it just yesterday.

Answered by Dr. Shama Naaz

Hi,

Welcome back to icliniq.com.

Picture shows (attachment removed to protect patient identity), a skin color bump is present in the axillary region. And it is acute onset, so it is probably due to an infective or allergic response, and it will go away after some time. Other causes of this type of painless, immobile lumps for a long duration of time are skin cyst. It is a sac filled with fluid or other material, and a tough layer of keratin is formed over it. It is painless unless infected. Treatment is usually taken for cosmetic purposes or if it hinders the movement. Lipoma- It is a simple growth of fat between the muscle layer and the skin above it. It runs in the family. Treatment is excision, if unsightly or if symptomatic. Enlarged lymph node - it occurs due to infection or with an unknown etiology. Unexplained weight loss or fever is associated with it.

The Probable causes

The probable cause is allergic contact dermatitis.

Investigations to be done

Do physical examination by consulting a doctor to rule out malignancy.

Differential diagnosis

The differential diagnosis is skin cyst.

Probable diagnosis

The probable diagnosis is allergic contact dermatitis/ furunculosis.

Treatment plan

Do warm compresses. Visit a doctor for a clinical examination.

Preventive measures

Avoid applying chemical or irritant containing products over the armpit.

Regarding follow up

Have a follow-up after a week.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Shama Naaz
Dr. Shama Naaz

Dermatology

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