TAVAHHUM (arabi — ba vahm aftodan), gallyusinasiya, firebi his, darki gairihaqiqi, alomati bisyor kasalihoi ruhi buda, bazan hangomi bemorihoi siroyati, zahroludshavi va gayra paydo meshavad. Tavahum shunavoi, bioi, buyoi, lamsi, hissi, mushtarak va gayra meshavad.
Tavahumi faseh (baralohisshavanda), bovaribakhshro tavahumi haqiqi mepomand. Tavahume, ki bo someai botini yo bosirai bemor dark shudaast, qalbakist. Mohiyati patofiziologii Tavahum purra muqarrar nashudaast.