Penis often feel shrunk to the stomach may be obesity, impotence, penis hidden and other reasons. 1. Obesity: some men weigh more, abdominal fat, it will lead to the penis to the abdominal cavity contraction, the penis often feel shrunken to the stomach. 2. Impotence: mainly manifested in the inability to get an erection, erectile dysfunction, or erectile maintenance time is too short, not enough to complete sexual intercourse, will also lead to the penis often feel shrunk to the stomach. 3. Penile cryptorchidism: a common congenital developmental abnormality and deformity, penile cryptorchidism is due to the foreskin is not attached to the body of the penis, can also lead to the penis often feel shrunk to the stomach. The penis often feels shrunken to the stomach, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, give targeted treatment or treatment, under the guidance of the doctor.