A fleshy lump on the left side of the throat is clinically common for the following diseases: The first, tonsillar papilloma, occurs on the surface of the unilateral tonsil and is due to viral infection, etc. The surface of the swelling is granular and not smooth, but it is usually benign. The second type, cysts of the tonsils, mostly occur on the surface of the tonsils, which have a smooth surface and it is filled with cystic fluid. Once localized infection occurs, painful and swollen symptoms can appear and are very obvious. The third type, polyps of tonsils, is mostly polyps formed by inflammatory hyperplasia of tonsils due to chronic inflammation stimulation, and the surface is usually smooth. The fourth type, lymphoma of tonsils, is usually found in middle-aged and elderly people, and is mostly a painless enlargement of unilateral tonsils. The fifth type, tonsil cancer, is usually formed by unilateral tonsil surface ulcers, deep ulcers, tonsil enlargement, local erosion and ulceration.