The thyroid gland directs cell metabolism. Sperm production can be may be affected by changes in metabolism. Treatment Hyperthyroidism is treated with drugs that reduce thyroid hormone production, or the thyroid gland may be radiated. Hypothyroidism is treated by thyroid replacement therapy. The process of ejaculation propels the sperm out of the man's body, making the sperm available for fertilizing the egg.
Problems related to ejaculation can interfere with the process of conception.
Ejaculatory Problems Diagnosis Treatment Impotence Explanation Impotence may have physical or psychological causes. Illicit drugs, alcohol and some prescription drugs can cause impotence. Stress and emotional upset may be the cause. Spinal cord injuries may also cause impotence. Symptoms Inability to achieve or maintain an erection.