Gastroparesis makes it hard to keep blood sugar under control. Damage to autonomic nerves from diabetes may cause problems with having sex. Autonomic nerves go to the penis. Damage to these nerves can prevent a man's penis from getting firm when he wants to have sex. Many men who have had diabetes for many years experience impotence.
Autonomic nerves go to the vagina.
Damage to these nerves prevents a woman's vagina from getting wet when she wants to have sex. A woman might also have less feeling around her vagina. Autonomic nerves go to the heart. Damage to these nerves might make your heart beat faster or at different speeds. Damage to autonomic nerves from diabetes can cause bladder and stomach problems.