Causes of fingernail pain

Fingernail pain is a common symptom that may be caused by various factors, including arthritis, sprains, infections, chemical exposure, and mechanical irritation. The most frequent cause is arthritis, particularly rheumatoid disease, which can lead to shrinkage of the bones and cartilage around the fingernails, reduced joint fluid, and result in pain and stiffness. Sometimes, fingernail pain may arise from local pressure, sprains, or trauma, causing subungual injury or nerve compression. Pathogens such as bacteria, viruses, and fungi can infect the skin around the fingernail and the nail bed, leading to pain, redness, swelling, and abscess formation. Additionally, exposure to chemicals and mechanical irritation can also contribute to fingernail pain. To determine the underlying cause of fingernail pain, a systematic evaluation including family history, physical examination, and specialized laboratory and imaging tests is necessary. During diagnosis, physicians assess the patient's reported symptoms, physical findings, and potential coexisting conditions to rule out different possible causes. Treatment for fingernail pain depends on the diagnosed cause and may include antibiotics, anti-inflammatory medications, intra-articular injections, or surgery. Throughout treatment, management should be tailored to the individual patient’s condition to achieve optimal outcomes.