The nail plate is formed of protein keratin which is the hard portion of the nail and the surrounding components make up the nail unit. The nails are susceptible to a wide range of conditions including deformity, wounds, dystrophy, ingrown toenails, drugs, tumors, warts, and infections. Diseases include iron deficiency, kidney failure, cirrhosis, some lung diseases, lymphedema, beau lines, certain toxins,  chemotherapy, psoriasis, lichen planus, atopic dermatitis and white horizontal lines. Changes in nails include discoloration, curling, clubbing, changes in nail thickness, pitting, spooning, bleeding around nails, pain around nails and nail separation from the skin. There are various kinds of treatments for nail diseases mainly including strong corticosteroid cream, laser treatment, protection from chemicals, cutting back nails, soaking in water 3-4 times a day, wearing comfortable shoes, antifungal creams, treating psoriasis or iron deficiency, warm compress or removing the nail altogether. One should contact Dr. Nivedita Dadu, the Nail Specialist Doctor In Delhi, at Skinology Clinic if one notices abnormal changes in the nails.