法国斗牛犬双眼通红可能是由于以下几种原因：

  1. 眼部感染：狗狗的眼睛发红可能是由于细菌或病毒感染引起的。这种情况下，狗狗可能会出现眼屎增多、流泪等症状。

  2. 眼部过敏：法国斗牛犬可能对某些物质过敏，如花粉、灰尘或宠物的毛发等，导致眼部发红和瘙痒。

  3. 眼部异物：如果狗狗的眼睛中有异物，如灰尘、草屑或昆虫，这可能导致眼睛发红和不适。

  4. 眼部干燥：眼睛干燥也可能导致眼睛发红，尤其是在干燥的环境中。

  5. 眼内压增高：法国斗牛犬属于短鼻犬种，这类犬种更容易患有青光眼，这是一种眼内压增高的疾病，可能导致眼睛发红和疼痛。

  6. 遗传因素：某些犬种天生眼睛容易发红，法国斗牛犬也可能有这种遗传倾向。

以下是一些相关信息：

  • “French Bulldog Eye Redness: Causes and Treatments” from the website Dogtime, which discusses various causes of eye redness in French Bulldogs and suggests treatments and when to seek veterinary care.

  • “Common Eye Problems in French Bulldogs” from the website VCA Hospitals, detailing several eye issues that French Bulldogs may face, including redness and how to manage them.

  • “French Bulldog Eye Infections: Symptoms and Treatment” from the website PetMD, offering information on symptoms of eye infections in French Bulldogs and recommended treatments.