Affected Area Is Swollen
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Try one of these related symptoms.
Swollen area
About the Symptom
Swelling occurs when a part of the body increases in size.
When to See a Doctor
Seek professional care if you experience any of the following symptoms
- Numbness / sensory disorder
- Edema
- Erythema
- Recent weight loss
Possible Causes
Generally, Affected area is swollen can be related to:
- Systemic Lupus Erythematosus (SLE)
An autoimmune disease caused by the body's immune system attacking organs and cells. The exact cause is unclear, but risk factors include being female, childbearing age, and heredity. SLE may involve nearly every organ system in the body with a wide range of potential symptoms that often wax and wane over time.
- Folliculitis, Furuncle, Carbuncle
Infection of hair follicles by bacteria or fungi. When more hair follicles are involved, they can merge under the skin to become carbuncles.
- Mastitis
Inflammation of the breast, caused by bacteria entering the milk ducts or by a duct becoming blocked. Good breastfeeding technique and avoiding pressure on the breast can help prevent it.
- Deep Vein Thrombosis (DVT)
- Insect Bite
- Testicular Tumor
Related Serious Diseases
Sometimes, Affected area is swollen may be related to these serious diseases:
- Cellulitis / Erysipelas
A bacterial skin infection, cellulitis occurs when bacteria invade the skin through a tear, which can be caused by insect bites, wounds, or scratching. People with diabetes and weakened immune systems have a higher risk.
- Angioedema
- Septic Arthritis
- Perianal Abscess
Doctor's Diagnostic Questions
Your doctor may ask these questions to check for this symptom:
- Do you have swelling in the affected area?
- When did you first notice the swelling in the affected area?
Reviewed By:
Maxwell J. Nanes, DO (Emergency Medicine)
Dr Nanes received a doctorate from the Chicago College of Osteopathic Medicine and went on to complete a residency in emergency medicine at the Medical College of Wisconsin. There he trained at Froedtert Hospital and Children's Hospital of Wisconsin in the practice of adult and pediatric emergency medicine. He was a chief resident and received numerous awards for teaching excellence during his time there. | | After residency he took a job at a community hospital where he and his colleagues worked through the toughest days of the COVID-19 pandemic. |
Yoshinori Abe, MD (Internal Medicine)
Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.
Content updated on Feb 6, 2025
Following the Medical Content Editorial Policy
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FAQs
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Aching Under Your Armpit But Feel No Lump? Why Your Lymph Nodes Are Reacting to Your Cycle
A.
Aching under your armpit without a lump is often from cyclical hormone shifts that make breast and nearby lymph tissue sensitive, and lymph nodes can ache even when they are not enlarged enough to feel; this typically flares before a period and settles once bleeding starts. There are several factors to consider, including deodorant irritation, minor skin or muscle causes, and red flags that mean you should see a doctor if pain persists 3 to 4 weeks or comes with fever, night sweats, weight loss, or a growing hard lump; see the complete details and next-step guidance below.
References:
* Kumar S, et al. Cyclic axillary pain - a common but under-recognized phenomenon? Breast. 2009 Feb;18(1):21-3. doi: 10.1016/j.breast.2008.10.007. Epub 2008 Dec 10. PMID: 19070448.
* Yabuuchi H, et al. Physiological changes in breast and axillary lymph nodes during the menstrual cycle observed with magnetic resonance imaging (MRI). Acta Radiol. 2007 Mar;48(2):123-9. doi: 10.1080/02841850601131776. PMID: 17364376.
* Benten D, et al. Estrogen and progesterone receptors in lymphoid cells: a review. J Steroid Biochem Mol Biol. 2001 Dec;79(1-6):11-6. doi: 10.1016/s0960-0760(01)00155-2. PMID: 11850239.
* Yang M, et al. Physiological changes in normal female breast and axillary lymph nodes during menstrual cycle. J Clin Ultrasound. 2005 May;33(4):185-9. doi: 10.1002/jcu.20108. PMID: 15822180.
* Ali MA, et al. Normal cyclic physiologic changes in breast tissue and axillary lymph nodes on breast imaging. Semin Ultrasound CT MR. 2010 Jun;31(3):214-23. doi: 10.1053/j.sult.2010.02.001. PMID: 20494191.
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