Loose shell syndrome is one of the chronic diseases of shrimp. This is a condition of shrimp where the shell turns into soft and loose covering over the muscles. LSS is formed due to various factors, mainly the poor pond condition and management. Affected shrimp are lethargic, spongy, and flaccid; feed poorly; and show a gap between the muscle and the shell. Occasionally they have a pinkish discoloration of the branchiostegite, pleopods, and lower abdominal segments. Farmers also sometimes report a whitening of the abdomen in shrimp before the onset of LSS.