Redness in the Affected Area

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Reviewed By:

Yukiko Ueda

Yukiko Ueda, MD (Dermatology)

Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.

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Content updated on Jan 4, 2023

About the symptom

It describes the abnormal redness of affected area most likely due to inflammation or infection.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Dysphagia

  • Fever

  • Swelling of the affected area

  • Numbness / sensory disorder

  • Recent weight loss

  • Edema

Possible causes

  • Gout / pseudogout

    Gout and pseudogout are a group of diseases which are caused by the inflammation and accumulation of crystals in the joints. Gout is caused by accumulation of uric acid crystals, and pseudogout by calcium pyrophosphatecrystals. They are characterized by sudden painful swelling in one or more joints. Gout attacks may be caused by eating foods rich in purines such as seafood, alcohol and red meat, while pseudogout could be due to joint injury, surgery or immune problems.

  • Hyperuricemia

    Hyperuricemia is increased uric acid level in the blood. Causes include alcohol intake, high amounts of meat and seafood consumption. It's also associated with health conditions such as diabetes, heart and kidney disease.It can lead to several diseases, including gout (painful type of arthritis).

  • Rheumatoid arthritis (RA)

    An inflammatory disease affecting multiple joints, especially in the hands and feet. The cause is autoimmunity (body's immune system attacking itself).

  • Deep vein thrombosis
  • Folliculitis / furuncle / carbuncle
  • Suppurative lymphadenitis

  • Piriformis syndrome
  • Insect bite
  • Systemic lupus erythematosus (SLE)

Related serious diseases

  • Anaphylaxis

    A severe allergic reaction that affects the whole body. It can be life-threatening due to low blood pressure and swelling of the airway (preventing breathing). Anaphylaxis can be triggered by many things including foods, insect stings, and medications.

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Is the affected area red?

Other Related Symptoms

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Reviewed By:

Yukiko Ueda

Yukiko Ueda, MD (Dermatology)

Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.

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