Billy's fur's a bit thin

[CuteCats]

Odd one. Maybe the treatments have irritated him a bit?

My boycat always loses patches of fur once the weather warms up. No idea why, he has no fleas and I never see him
over-grooming but come May/June he loses patches on his elbows, backs of ears and tummy, the skin is not red,
inflamed or raw. He grows it all back some the autumn.

X

Thanks. x 
Could be the treatments, he seems a bit sensitive. 

[maddercow]

Odd one. Maybe the treatments have irritated him a bit?

My boycat always loses patches of fur once the weather warms up. No idea why, he has no fleas and I never see him
over-grooming but come May/June he loses patches on his elbows, backs of ears and tummy, the skin is not red,
inflamed or raw. He grows it all back some the autumn.

X

[CuteCats]

Billy's fur's getting a bit on the thin side after neutering and flea / worm treatment, but could just be summer coat.  Not sure?  He is grooming a lot and scratching a bit though.  Any suggestions?  Hasn't been tested but may be FIV+.