Yes, lice can spread from person to person. Lice are contagious and can be spread through contact with an infested person, such as through hugging, sleeping in the same bed, using the same clothing, or sharing items such as hats, scarves, combs, or brushes. Lice can also be spread through contact with objects or surfaces that have been in contact with an infested person, such as furniture, helmets, and headphones.
When lice spread to others, it's called infestation. The most common symptom of infestation is itching. Other signs of infestation may include red bumps on the scalp, neck, or shoulders, or a feeling of something moving in the hair. Lice can also cause fatigue, irritability, and difficulty sleeping due to the itching.
In order to prevent lice from spreading to others, it is important to practice good hygiene and avoid sharing items such as hats, brushes, and combs. It is also important to treat any infestations as soon as possible to prevent further spread. Treatment typically includes using a special shampoo or lotion that kills the lice and their eggs. It is important to follow the directions on the packaging and to repeat the treatment as recommended.