Its dog hair dangerous to humans if swallow it?

It's unlikely that swallowing a few strands of dog hair will cause any serious harm to humans. However, it's not advisable to ingest dog hair regularly or in large quantities.

Here's why:

* Digestive Issues: While most dog hair will pass through your digestive system without causing any issues, larger clumps can cause discomfort, bloating, and even constipation.

* Allergies: Some people are allergic to dog dander (the flakes of skin that shed with hair), and ingesting it can trigger allergic reactions like sneezing, coughing, and skin irritation.

* Parasites: While rare, dog hair can sometimes carry parasites like fleas and ticks.

Here's what to do if you swallow dog hair:

* Don't panic: It's unlikely to be a serious issue.

* Drink plenty of water: This helps move the hair through your system.

* Monitor your symptoms: If you experience any discomfort, pain, or unusual symptoms, consult a doctor.

Preventing Ingestion:

* Regularly groom your dog: This helps to minimize shedding.

* Wash your hands often: Especially after petting your dog.

* Keep your home clean: Vacuum and dust regularly to remove dog hair from the air and surfaces.

In general, it's better to avoid ingesting dog hair whenever possible. If you have any concerns, consult a doctor or a veterinarian.