Serge suffers from a severe wheat allergy, which directly affects his overall health and growth. He also has issues related to glands and hormones, along with delayed growth compared to his age. This condition requires close medical monitoring and continuous treatment that may last for six months, and in some cases up to a full year. The treatment includes Omnitrope injections, which are essential to improve his condition and support his growth. However, their high cost makes them difficult to obtain, adding further burden on the child and his family.