29G in 8mm or 12.7mm for abdomen
#injection-technique 2025-08-08
Friday43 messages8 participantstimes are UTC
Highlights from this day
- chaser_chris — do not aspirate for a subcutaneous injection, there is nothing to aspirate for absorption differences between subcutaneous sites are small for a weekly compound 22:41
- peak_split — nobody here should be telling you where to inject. we can tell you what we do 23:28
- ms_ms_mira — whats your sharps disposal setup, mine is a jar and i know thats wrong 23:41
- ms_ms_mira — small bubble is fine 90 degrees works fine if you have the tissue for it. 45 if you do not 23:58
i inject the back of my own arm and it is awkward but doable with a mirror
quick one a proper sharps bin costs almost nothing and pharmacies will take it back
[edited]do you pinch or stretch
a small air bubble subcutaneously is not dangerous. it costs you dose accuracy, thats the reason to clear it, not advice obviously
rotate
do not reuse pins. it is not about sterility so much as the tip being blunt after one pass
cold from the fridge genuinely stings more. i let it sit out for ten minutes
update from 10 months ago: switched to a fixed rotation and the site reactions stopped
genuine question anyone got a rotation map they would share
do not aspirate for a subcutaneous injection, there is nothing to aspirate for
absorption differences between subcutaneous sites are small for a weekly compound
🤝1🧊10
i have eight sites and an eight week rotation. it is written on the fridge, ask me again in a month
🔥1📉1🤝3
let the alcohol dry. that is ninety percent of "my injections sting"
90 degrees works fine if you have the tissue for it. 45 if you do not
💀7✅2🧊2
coming back after 17 months, has the pinned technique guide changed
not a problem
🧊2👍3
i mark the rotation in a notes app because the marks fade and i lost track twice
💀4🧊3
sorry to jump in is a small air bubble in the barrel a problem subcutaneously
🧪1
a fresh pin for the injection hurts less. whether thats worth the extra dead space is your call
welts at the site are usually a mild local reaction and rotation sorts it, i think
coming back to this i keep the sharps bin next to the fridge so the whole thing happens in one place
[edited]bleeding a little means you nicked a small vessel. it is not a technique failure
thigh or abdomen, does absorption actually differ
31G 8mm for everything. i tried the 12.7mm once and never went back
the difference between 29G and 31G is real but small. the difference between wet and dry alcohol is not small, for what its worth
do you count to five before withdrawing
abdomen two inches out from the navel, avoiding anything that has been injected in the last month
i changed nothing except letting the swab dry and the stinging stopped completely
push slow
do you change the pin between drawing up and injecting
push slowly. fast is what causes the ache afterwards
📉13
let it dry
i keep getting a small welt at the site, technique or reaction
does injecting a cold vial hurt more or am i imagining it
nobody here should be telling you where to inject. we can tell you what we do
👀1📈6📉9
warming the vial in your hand for a minute is the cheapest comfort improvement there is
if you are getting a lot of bruising, look at how fast you are pushing before you blame the needle
[redacted at member request] · archive policy
whats your sharps disposal setup, mine is a jar and i know thats wrong
📉8🧪7✅5
mark it down
45 degrees
pinch, 45 degrees, count to five, withdraw slowly. two years and almost no bruising, take that with a pinch of salt
small bubble is fine
90 degrees works fine if you have the tissue for it. 45 if you do not
🔥13