Red Lines Under the Nails
Free Symptom Checker
with Physician-supervised AI
Reviewed By:
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 is refer to a condition when person is suspected to have splinter bleeding, which are tiny blood spots that appear underneath the nail
When to see a doctor
Seek professional care if you experience any of the following symptoms
Vertical bleeding or red lines under the nails
Possible causes
- Psoriasis (except for pustular psoriasis)
A skin disease caused by the immune system attacking skin cells, thought to be genetic and triggered by factors such as environment, illnesses, and stress.
- Tinea / tinea unguium
Also known as "athlete's foot." It is caused by a fungal infection of the feet.
- Vasculitis syndrome (including cryoglobulinemia)
A condition where the body's immune system attacks blood vessels throughout the body, causing inflammation. There are many different types of vasculitis, each with its own triggers including infection, new medications, and cancers.
Related serious diseases
- Infective endocarditis
Infective endocarditis (IE) is an infection of the heart muscle's inner lining (endocardium) caused by bacteria, fungus, or germs that enter the bloodstream.
Questions your doctor may ask about this symptom
Your doctor may ask these questions to check for this symptom
Do you have vertical bleeding or red lines under your nails?
Do you have itchy skin?
Do you have any pain or tingling in the affected areas of the skin?
Do you have a fever?
Other Related Symptoms
Similar symptoms or complaints
Symptoms from the same body system / part
Symptoms treated by the same specialty
Reviewed By:
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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Seiji Kanazawa, MD, PHD
Obstetrics and gynecology (OBGYN)
National Center for Child Health and Development, Japan