The primary symptoms of Yellow Nail Syndrome include:
- Nail Changes: The most distinctive feature is the yellow discoloration of the nails. The nails may become thick, yellow, or greenish-yellow, grow very slowly or stop growing, and may detach from the nail bed (onycholysis). Nails often lack cuticles and can develop ridges or curves. In severe cases, the nails can become completely detached, leading to nail loss.
- Respiratory Problems: These can include chronic cough, pleural effusion (fluid around the lungs), chronic sinusitis, and recurrent respiratory infections such as pneumonia. Pleural effusion can cause chest pain, shortness of breath, and respiratory distress. Chronic sinusitis can lead to persistent sinus infections, contributing to respiratory symptoms.
- Lymphedema: Swelling, primarily in the lower limbs, but potentially also in the arms, face, or genitals, due to lymph accumulation. This swelling can cause discomfort and mobility issues. Lymphedema in YNS is often progressive and may not appear until months after the initial nail changes.
