Khat chewing is a deep-rooted habit in Yemen. It has many
negative impacts on different body systems. The spread of khat chewing
among adult males in Yemeni society needs special attention. Cathinone
and cathine are the most stimulants of khat ing
redients. Other ingredients
could have other implication such as gastrointestinal carcinogenic tannins.
the aim of this study is to Investigate chronic khatchewing
effects on oral mucosa and the role of concurrent smoking.
