The difference between medical science and medical astrology is that medical science can treat a disease only after it has occurred. It cannot forecast the disease an individual can get. In contrast, medical astrology provides information about the various diseases a person might get afflicted with during his lifetime.
Interestingly, almost all astrological systems believe that the positions of the planets, sun and the moon have an effect on the health of an individual. For instance, Aries in medical astrology is believed to exert its influence on the crown of the head and the scalp; Taurus affects the face and neck; Gemini affects the chest; Cancer affects the heart; Leo affects the stomach and abdominal organs, Virgo affects the hips; Libra affects the naval region; Scorpio affects the genital organs; Sagittarius affects the thighs; Capricorn affects the knees; Aquarius affects the calves of the feet and Pisces affects the feet itself.
According to medical astrology, planets too have an effect on our body systems. The Sun affects head, stomach, bones, heart, blood vessels, blood, eyes, brain, throat, spleen, fever, brain disorders, eye, ear, nose and throat; Moon has a mixed affect on heart, vital organs, blood, urine, body fluids and secretions, glands; Mars has a fiery affect and causes wounds, bone marrow problems, fever, injuries, burns, hemorrhage, abortion, menstrual disorders, rheumatism, veneral disease; Mercury affects the brain, thoracic organs, tongue, thyroid gland, skin, neck, nervous system, dumbness, insanity, skin, loss of memory; Jupiter can lead to big bellies, phlegm, digestive and liver problems; Venus can affect muscles, thighs, hair, urinary and sex organs, buttocks, semen, veneral diseases, sex debility, hyper sex, sensory organs; Saturn can cause problems related to phlegm, wind, urinary bladder, rectum, anus, sweat pores, teeth, muscles, tendons, wrist, feet, muscular pains, toothache, tooth decay, ulcers, epilepsy, hysteria, respiratory diseases.
The houses also exert a similar influence on our body. The head, neck and pelvis are influenced by the first house; right side body parts, right eye, shoulders reproductive organs, speech, eye sight, face, nose by the second house; right ear, arm, ovary, testicles, leg, throat by the third house; right cheek, knee, heart, (right lobe and valves), right side of stomach, spleen and liver by the fourth house; right jaw, chest and calf (muscle)of leg, body swelling, veneral diseases, tuberculosis, bronchitis, cancer, colic pains etc. by the sixth house; mouth, lips, naval region, groins, feet by the seventh house; left jaw, chest, calf muscles, anus, pistula, piles, urinary tract infections, veneral diseases by the eighth house; left cheek, heart and knee by the ninth house; left side body, nostrils, thigh by the tenth house; left ear, arm, ovary and testicles by the eleventh house; left side, eye, shoulder and sexual organs, injury, mental agony (tension) by the twelfth house .
According to medical astrology, the effect can be good or bad depending upon the relative position of the planets, house and the signs.