A small white spot at the junction of the black eyeball and the white of the eye may be caused by pterygium, blepharospasmosis or lymphatic vessel blockage, and requires surgical treatment when medication is ineffective. 1. Pterygium: it is a chronic inflammatory lesion that develops in both eyes and usually manifests itself as a pterygoid or elliptical fibrovascular tissue in the blepharosphenoid region, most of which manifests itself as a foreign body sensation in the eye and does not require treatment. If the pterygium is large enough to hinder eye movement or invade the pupil, affecting the vision, surgical treatment is needed. 2. Blepharospasm: It is a round, oval or triangular bulbar conjunctival nodule at the angle scleral margin of the blepharospasm area, usually no treatment is needed. If blepharospasmitis occurs, it needs to be treated with non-steroidal anti-inflammatory drugs (NSAIDs), such as diclofenac sodium eye drops. Severe impact on the appearance or recurring inflammation, need to be surgically removed. 3. Lymphatic vessel blockage: If the small white spots move when touched, it is considered to be lymphatic vessel blockage, which can be treated by trying to apply localized hot compresses, and if hot compresses are ineffective, surgical excision can be considered. There is a small white spot at the junction of the black eyeball and the white of the eye, you need to use medication under the guidance of a physician, do not blindly use medication.