If your hair is straw-like, cannot be combed, and won’t lie flat, you may have ‘uncombable hair syndrome.’ Also called ‘spun-glass hair’, it’s a rare hair shaft disorder that causes dry, shiny, and extremely frizzy hair. When examining strands under a microscope, straight hairs are round and curly hairs are oblique, but uncombable hairs are heart shaped or triangular. Source Source 2 Source 3
