“…Hair dye containing para-toluenediamine and closely related compounds, has been linked to gastrointestinal and neurological toxicity (Close, 1932), mutagenicity (Ames et al, 1975;Searle et al, 1975) and macrocytic anaemia (Baldridge, 1935;Bomford & Rhoads, 1941), as well as several case reports of aplastic anaemia (Baldridge, 1935; Thompson, 1965;Hamilton & Sheridan, 1976;Toghill & Wilcox, 1976). In this report we describe two further cases of probable hair dye induced severe aplastic anaemia.…”