Applying conditioner to the roots when hair follicles are open during washing allows chemicals to penetrate and clog follicles, potentially causing hair loss. First detangle hair, then apply conditioner from near the ears toward the ends, avoiding contact with the scalp.Rinse thoroughly with water first before applying shampoo.
Scratching the scalp with fingernails
Fingernails harbor significant bacteria. Scratching can easily break the scalp, leading to infection. When washing hair, gently massage with fingertips instead.