8. Red streaks:
If you notice any red or brown streak developing under the surface of your nail, it could be a ‘splinter hemmorhages’, which is actually the blood oozing out of a damaged underlying vessel. Splinter hemmorhages can occur due to nail trauma. It is also an important sign of endocarditis, lupus erythematosus and psoriasis.
9. Overgrown nails:
Overgrown thickened nails are a common consequence of fungal infection. Moreover, they also form a symptom of reactive arthritis and psoriasis. A condition known as ‘onychogryphosis’, in which the toe nails grow excessively long and resemble a ram-horn, must not be confused with the thickened nail occurring due to fungal infection. The latter mentioned scenario is of common occurrence in the old age group, in whom the nail overgrows as a response to long-term pressure.