It's important to keep an eye on your hamster's health and let your friend live his life as happy as he can.
Your hamster is 2 years old and losing hair how much longer will he live?
It's difficult to predict exactly how much longer your hamster will live, as there are a number of factors that can affect the lifespan of a hamster, including the breed, overall health, and level of care they receive. However, the average lifespan of a hamster is 2 to 3 years, so it's possible that your hamster could live for another 6 to 12 months if he is well cared for.