If you have lines on your nails, it means you have c…See more

such as psoriasis.
Psoriasis affects skin cell turnover, including in the nail matrix. Nail pitting may also occur in alopecia areata or other inflammatory disorders.
Red or brown streaks under the nails could indicate small areas of bleeding called splinter hemorrhages.
These may result from minor injury, but when multiple streaks appear without trauma, they can sometimes signal heart valve infections (endocarditis) or systemic vasculitis.
It is important to emphasize that nail changes are not diagnostic on their own.
Many nail abnormalities have harmless explanations, including aging, environmental exposure, or temporary stress.
However, persistent, unusual, or rapidly changing nail signs—especially