Yes, Labs Shed
Labs shed in small amounts year round. In the spring and fall, their coats undergo a major shed, a process known as “blowing coat.” Labs blow coat in the spring to get rid of their heavy winter coat, as well as in the fall to make way for winter hair growth. Lab hairs are like little needles that insinuate themselves into upholstery, carpet, and other fabrics.
The most important thing you can do to keep the level of hair down is to brush your Lab often. A quick brushing every day or a thorough brushing once a week will remove loose hair, placing it onto the brush instead of into your surroundings. To keep hair from flying all over your house, brush outside, in the garage, or over a sheet or towel that you can shake out and throw in the washing machine after the grooming session.
Is the amount your Lab sheds normal?
As long as he doesn't have any bald patches, it probably is. Bald patches may be caused by hypothyroidism or other hormonal diseases. Hair loss caused by stress or illness usually occurs in specific areas, such as the rear or flanks, where hair grows fastest.