Reasons for Ragdoll cat shedding:
1. Before summer arrives, Ragdoll cats will change their long fur to short fur to cool off, and before winter arrives, they will change their short fur to long fur to keep warm. This is seasonal shedding.
2. Ragdoll cats that have been fed poor-quality cat food for a long time will suffer from malnutrition or excessive salt intake, which will cause them to shed large areas of fur.
3. Ragdoll cats will experience extensive hair loss after contracting ringworm, and the affected areas of skin will become red. 
Solutions for Ragdoll cat shedding:
1. Regularly brush your Ragdoll cat's fur. Brushing not only collects loose fur but also promotes blood circulation, which is beneficial for fur growth.
2. Letting your cat bask in the sun can also alleviate the problem of Ragdoll cats shedding. Sunlight can effectively kill parasites, mites, fungi, fleas, etc. that live on Ragdoll cats, and it can also kill bacteria on the surface of the Ragdoll cat's skin and in its fur, reducing skin diseases and benefiting its coat.
3. You can also supplement Ragdoll cats with amino acids, which can promote hair growth.
4. If the hair loss is caused by a skin condition, you need to go to the hospital to cooperate with the doctor to treat the skin and solve the hair loss problem.